as always, it depends on what you want out of the car. if you want a beast, find a decent lexus sc300 5spd, rebuild engine to handle more boost, big turbo, then getrag 6spd swap... heres the prices for that:
sc300- 8k
rebuild w/ parts- 4k or less
turbo+fuel- 6k
6spd swap- 4k
rims/tires- 3k
enjoy your luxury cruiser beast
