Just a little update. The car is still yet to be run at a track even with the current restrictions it would still be keeping the driveway warm..
Turns out the engine was in a pretty bad state due to some poor assembly by the engine builder and a issue with lifters due to cam profiles. The OEM lifter was not able to deal with the cams which caused four to fail. There were a number of other problems which has resulted in the engine removed, dismantled and now being rebuilt. 
I have moved the the Ford motorsport lifter which is proven with a bigger cam and higher rpm in the same geometry engine as the 2GR. These drop straight in which is a win. 
Have also moved to the 2UZFE titanium inlet valve (Lexus 5.0 litre V8) which retaining the inconel OS exhaust valve.
I have also ditched the dual valve spring in favour of a 'Kelford' beehive spring/titanium retainer which has been developed for the 2GR. 
The heads are also to be replaced as the existing heads were 'over ported' for NA application. They are right for turbo/booted engines but not NA. Basically the exhaust ports are just too big, inlet are just fine. I will be selling these off in the near future. 
Bottom end is not damaged so just new rings and bearings then back together. 
Also working with a friend to fabricate a flat floor and improved ducting for front wheel arches, new plenum and inlet ducts for intake. 
The rest of the car is all pretty much ok but you can always find something to tinker with if you want to. 
 

Good progress. Don't forget that you can only have the OEM flat floor between the front and rear axles if you are going to compete in time attack open class. You can get strengthened OEM panels from MR2 Heaven. This is what I have on my car.

Thank mate. I will still be moving forward with the full undertray with some removable panels to get it through scrutineering. 
I have moved over to a different piston so there is another delay on the engine build. Im expecting these to be ready in 6 weeks but this can easily blow out as it has done many times before. Not too fussed. Will get there one day! 
 

It has been 8 months since the last update. That flew by.. 
Things are moving slowly but still moving. The main point being the undertray from front bumper to engine bay has been completed. May have it secured into place this week. Maybe..
Finally fabricated, fitted, painted the side intakes. These are fibreglass, made from scratch, first attempt. Another job I have been wanting to do for 5 years.
All the engine parts are now here, in the workshop, waiting in line to have it assembled. It is expected at the end of May, but can never guarantee it. 
Will have an update when it happens.  

Coming along nicely, keep up the great work.

You might get back on the track before me.

Unlikely!