This. It's been a recent dream of mine to find a green/grey two-toned 1988 manual, sunroof, CA18DET, HUD equipped S13 and hunt down some parts to make it pretty much fully factory optioned. Retro goodness such as cool-box, rear quarter glass light-up inserts, FACTORY HEAD UNIT!!!, digital climate control, rain visors, brick lights, the lot!
I have never seen somebody do anything like that. Every S13 I see is modified, cut up, skidded, crashed, repaired, blah blah. Nothing against that, but it would be very cool to see a proper, original, top of the line Silvia.
I think even more so than the GTR, since it's much more common to see a bone stock, clean GTR (since they're a valuable car).