do it yoourself..... do a lot of research and have access to workshop with welding facilities and hunt ebay.... and give yourself time to put it together.... even then you'll eventually spend a min of AU$2500
no kidding, smidge? my mech's got a jdm tc-ed front cut thats been sitting in the garage for bout a yr and i'm about to get him to fix it up. is the engine likely to blow anyway, or just when the turbo's not installed properly?
from the factory car makers strengthen the entire motor before whacking a turbo on it
there's a stack of info on this subject on this forum and others so doing your research will really pay off unless you just want to take it to shop with a wad of money and get them to do it for you