delSol... fun car, ect... you have already had one
240... RWD and lots of mods for it
3000GT....heavy as hell, and a mother****er to work on.
300ZX....don't bother unless it is a twin turbo
Lude....not my cup of tea
AWD DSM.....decent choice, and lots of mods for them. prolly would be my 2nd choice given your budget.