LOL
for starters, trust me that black is probably the worst color you can get
not for looks, it looks mad if you get all the swirls and marks out of it
but mainly for heat.
At the current skyline prices you will definately be able to get a stock 93-95, maybe a series 2, R33 GTS25t for $20K
Ide suggest looking private sales tho, dont bother with dealerships unless you are buying a brand new car
Get the car checked by a descent performance workshop, they will be able to tell you lots of things about it.
Oh, and dont think youll get one with 60,000km on it, unless its a series 2, even then its very rare to be genuine KM