get an NA r33 series 2, i got one in may and payed 12,200 so prices carnt be that bad.
it had done 80,000k's and was in mint condition. =) (NOT ANYMORE!)
f**k the 300, to much to run. heavy + larger motor will mess with your funds
in my mind there is no comparison to an 89-91 model car and a 96....i dont think you would be able to pick up a 92+ model as they are alot more sort after. but who knows