well here is what ive come up with.

suck through turbo using a Ct12a turbo (maybe 200)

standard carb with maybe a bit of a rejet if needed. (mite take a bit of time is the only cost...)

make a 2" exhaust from some normal old exhaust steel (not stainless for this thing, maybe 150)

bit of misc hosing for oil lines etc (50)

cheapo boost guage (50)

exhaust manifold (time mainly i think)

what else have i missed?