Suspension Upgrade to Late Model (1997) Bathurst

I first warn that this will be a "What suspension should I buy?" thread - but I assure you that I have read through every thread present in the suspension forum looking for an answer but have been unable to come up with a definitive one regarding late model SW20's.
 
I have a 1997 SW20 Bathurst, I'm not worrying so much about trying to make it go faster - I should just buy a turbo for that - but instead I'd like to have it handle better and the best place to start would be to replace the 15 year old suspension. I'm unsure which way I wish to go as the car is a daily driver so it still needs to be relatively comfortable, but I do enjoy taking her to the track when I get the chance so I would like it to perform well there also.
 
From what I've been reading, the one of the best combinations to keep it comfortable while improving the feel is to go with the Koni inserts and Eibach Pro Kit - but to install these requires that my suspension be the "Gland nut" type. As mentioned in another thread, I attempted to move the plastic part of the shocks down to find the nut, however they did not move and this indicates that it is the sealed strut type (i.e. no Gland nut)? It was mentioned that it was mostly the older SW20's that had this type, as mines 1997 I doubt it will have them  and probably not viable to get the inserts...
 
In regards the coilovers - reading about them indicates that they don't last all that long, the ride can be a bit rough and while they are "fully adjustable" - after adjusting them, all the suspension settings will be wrong for the new adjustment and be quite inefficient! I'm not sure these are what I'm after...
 
What else is there to get for a late model SW20?
 
Appreciate any input, thanks :)

Get a new set of Bilstens and TRD springs and be done with it.

Confirm what kinds of struts you have first.
Hard to tell by the year model as previous owner might have changed them already.
As in the pic above, just slide the rubber boot up and have a look, with the car jacked up. I had sealed rears and unsealed fronts.
A suspension place can modify the sealed ones and a nut to them to accept shock inserts.
New shocks would be the first thing I would install to freshen the suspension, using your stock springs.

If course with coilovers, if you adjust them then you need to get the alignment redone

Yep TRD are a little lower and stiffer than the Eibach Pro Kit.
I use the Pro Kit + Koni shocks and they're great all rounders.

Zediah 

Reddtarga - I noticed on twos'r'us they have a ball join/tie rod combo set on sale, would they be a good place to start? () Although they don't appear to have suspension brushes that I can see...would be good to have everything in one order to save on shipping

Would it cost much to have a suspension place modify the sealed ones?

What exactly would the Bilsteins be replacing? The entire strut/shocks? I have some knowledge of suspension but there's still quite a large gap sorry...

  
Twos'rus give good service. I got Koni inserts, (gland nut type) tie front rod ends, ball joints, and poly suspension bushes from them, and highly recommend them.
But it pays to shop around. Also try Gorilla, Road and Track, and Lithia Toyota Parts.
 
Suspension bushes:
Many people replace the stock rubber suspension bushes with poly.
Pro's: tighter suspension feel.
Cons: they need lubrication or can become noisy. Also tend to transmit more vibration.
 
Koni, Bilstein:
I have heard the saying "Bilsteins for the track, and Koni's for the street," but of course you can stiffen the Koni's up for a track day anyway.
I have tried both on my car, and I found that the stock struts with  Koni adjustable inserts on the softest setting, ride noticably softer than the stock sealed Bilstein strut/shock combo.
 
I'm not sure about Bilstein inserts, but you can buy a new stock sealed strut shock combo.
 

yeah I find the progressive Eibach rears a bit 'floaty' at times over crests and bumps in the hills, would prefer linear. Are the TRDs progressive rear too?
 

^Apparently you can get Industrial Springs on Pt Road to make up custom springs to suit.

I agree re the longevity, however I'm sure they'll still last plenty long enough. Will probably kill the stock motor or wear the transmission & have plenty of "garage detention time" before BC's require replacement....haha