the cheapest option would be to get a low KM t28 of a S15 nissan would be ur best bet

with minimal mods ie decent cooler, and dumpy + 3" u should be able to make around 170-80 rwkw's on the 17psi mark

forgies are probably a good idea 2

i've heard of ppl using highflow t04's o3' etc and sti turbs, but i would be happy with the power figure of a t28 and so would my wallet not having to change manifolds

thats my 2 cents