As you can see, I also have a 1996 spec 2 GTS25t, and they're a real nice car.
There have been a few horror stories on here (including my own) about misfiring R33s, but they all seem to get sorted out, and run really well.
As far as price goes - where are you??
Checking it out - get a mechanic you trust to have a look at it, and give it a good drive. Dunno what else really.