well no one part was too expensive. most things were around the 400 dollar area. Sr20 are kinda cheap to build. the parts for the fully built motor n partially upgraded drivetrain(clutch n flywheel) were only 4k. i got quite a few things at a discount.
the next upgrade will probably expensive. power fc(800) n hks gt-rs turbo kit(2k). but thats not till february.