oh yeah, this build on 8-9 psi shouldn't run him more than 2k

rebuild kit = 400 max
getting it machined is about 200-300 $$
turbo manifold = not sure, around 500??
turbo kit = 400-500 go with ebay turbo kit, they not bad with low boost, other kit if you dont like ebay.

i have not build a turbo project yet but just giving you something to start with using my knowledge. my b18b1 turbo build will be done within next few months