hi Hadyn
i came the same route that you are now proposing, my first "serious" car was an s13, i liked that so much i then got an s14, then a supe i have now owned it for 3 and a half years which is the longest i have ever owned a car i honestly can't think of any other car i would sell it for (without a lottery win), my car is a 93 import auto with 100 k miles, in that time i have changed the timing belt and tensioner, an ancillary belt pulley bearing, water pump, intercooler (primarily to go FMIC), everything else replaced has been performance replacements, they are fantastically reliable cars and very well put together, the performance over the 200sx is not to apparent in stock form up to about 30 mph but after that it is awesome, and when you go BPU it is totally awesome, my sx was starting to run out of legs at about 120 ish (i had it up to 135) whereas the supe pulls like a train all the way up to 150 (where your bottle go'es), the one thing i would have done different with hindsight is buy a uk spec then i would'nt of had to spend £1000 uprating the import brakes, service history with such a complex beast as a supe i think is vital, if it has good history forget the mileage, beware if the modding bug bites these can get very expensive cars, hope this ramble from an ex nissan owner helps