Some more updates. 
 
- I bought a new 4-Runner 1 inch bore brake master cylinder
- mrmr2 is sending me a 1995 slimline brake booster
- I still need to source a check-valve for the booster
I'm looking forward to finding out how much the brake pedal feel is improved after the MC and booster are installed!
 
I also ordered a CRW heavy duty CV joint kit which is on its way over from the US now. I have a torn CV boot, so now is a good time to upgrade the CV joints and combine the labour. Highlander (if you happen to read this), I'll give you an update after I receive the CRW CV kit, because I saw this: http://www.mr2australia.com/mr2play/tm.aspx?m=123675
 

robk
Some more updates. 
 
- I bought a new 4-Runner 1 inch bore brake master cylinder
- mrmr2 is sending me a 1995 slimline brake booster
- I still need to source a check-valve for the booster
I'm looking forward to finding out how much the brake pedal feel is improved after the MC and booster are installed!
 
I also ordered a CRW heavy duty CV joint kit which is on its way over from the US now. I have a torn CV boot, so now is a good time to upgrade the CV joints and combine the labour. Highlander (if you happen to read this), I'll give you an update after I receive the CRW CV kit, because I saw this: http://www.mr2australia.com/mr2play/tm.aspx?m=123675
 

Did you ask them if they were new, second hand or refurbished when you ordered?

Hey Peter, did you order this? :
http://twosrus.com/catalog/product_info.php?cPath=22_35&products_id=891
Or, did you order this? :
http://www.koracing.net/viewproduct.php?folder=84&product=418
I can only assume that the item in the second link is a pre-assembled version of the kit in the first link, which is why you would have to provide the shafts for the second option. 
 
I actually didn't make the order through twosrus or koracing. I made the order directly through Josh from CRW, by email. I simply asked for "the CRW heavy duty CV joint kit". I assume that I will be receiving the equivalent of the item in the first link above. I paid 375 USD including shipping (yeah I wish I bought them back when the exchange rate was much better!)
 
*EDIT* I just had another look at your other thread about this topic, and it sounds like you ordered the same thing as me.
While I'm waiting for the kit to arrive, I might send Josh another email and ask him what he actually sent to me (ie. which parts will be new/upgraded). 

I just got a reply from Josh/CRW.
 
I sent him this picture and asked him to clarify some things, just because I was interested. The picture is from the twos r us website and I added the numbers 1-3 to make it clearer.
 

 
Josh said that I will be receiving exactly what is in that picture.
He said #1 and #2 are similar to stock, but #3 (I assume that's the 'cage') is thicker and a different design to stock. I also asked him about the ball bearings and he said there's nothing special about those, but when he fits them he may use some slightly oversized ones to achieve a good tight fit.

Bought mine direct from Josh as well. I now also have another set (given to me very recently) whic have had very little use.

robk
I just got a reply from Josh/CRW.
 
I sent him this picture and asked him to clarify some things, just because I was interested. The picture is from the twos r us website and I added the numbers 1-3 to make it clearer.
 

 
Josh said that I will be receiving exactly what is in that picture.
He said #1 and #2 are similar to stock, but #3 (I assume that's the 'cage') is thicker and a different design to stock. I also asked him about the ball bearings and he said there's nothing special about those, but when he fits them he may use some slightly oversized ones to achieve a good tight fit.

Rob. Exactly the same kit as I received. Also my car must have already had an upgraded set when I purchased it as we could see absolutely no physical difference in the cage dimensions between the CRW supplied kit and the cages already in the car (except the pieces of very used gasket attached to the CRW cage).   You may also prefer to use different boot banding clamps to those supplied with the kit. If you do I have the appropriate tool you can borrow.

That'll be a good investment. I've been too lazy to buy it.....

I've finished updating the turbo-to-intercooler piping yet again. I hope this will end all of the related issues forever, but I've said that before!
 
I decided to go ahead with the s**t job of removing the turbo compressor cover while the rest of the turbo was still in the car, then my friend welded a cast alloy 90 degree elbow directly onto the compressor cover. The alloy elbow goes into a silicon double hump hose and then there's a very short aluminium pipe into a big silicon reducer on the A2W intercooler. The double hump hose and reducer combined should allow plenty of movement when the engine rocks up and down. 
 
Previously I had a silicon 90 degree elbow off the compressor, then a metal pipe to the silicon reducer on the A2W intercooler. If the pipe beading and/or clamps weren't working perfectly, then at ~30psi of boost the big 90 degree silicon elbow was able to move/expand far enough to allow the piping to pop out of the silicon elbow or the reducer (I can only assume that this was the cause of all the problems before). Also, without heat shielding the 90 degree silicon elbow failed at the track due to its proximity to the exhaust manifold. 
The new setup should hopefully eliminate all of those problems. With the solid 90 degree elbow off the turbo, there is now very little room for anything to pop out of the clamps, and there are better beads on the piping this time. Also, there is no longer a silicon elbow right near the exhaust manifold, so I shouldn't have to worry about that anymore either. 
 
Now I just have to get the brake booster, master cylinder and CRW CV joints installed, then I'll be ready for more drag racing and track days. 

Yaaaay! The 1 inch master cylinder, 1995 SW20 brake booster, vacuum check valve and CRW heavy duty inner CV joints were all installed today.
 
The brake pedal is now much firmer and at a good height, exactly as I wanted. It feels perfect on the street so far, but I have to wait for the roads to dry up so I can try some more aggressive braking.
 
The CRW CV joints went in with no trouble at all as well.
 
The only bad news is that I was made aware that at least one of my engine mounts is shot. I was probably just used to it so I didn't realise, but after they told me I started to really notice it. That will be the next thing on the list.

I have been using the heavy duty ones that Terry makes. I recommend them. No issues.