If you have the 185 motor, ECU and wiring harness, that makes it easier but there's still gonna be some minor wiring work to do. I see you've posted on www.alltrac.net too; that's good b/c a lot of the guys have done the swap there. You should check out Chris D's site, he has some good info on it.

You actually have the same bolt pattern as the Celica's. Try going onto 6gc.net or www.alltrac.net You'll find that all or most Nissans came with 114.3 bolt pattern.