how big is the budget and whats the goal ??? you can turbo a 4efe really cheap keep 4efe eletronics and just fit a emanage blue and get it mapped just bolt on a turbo kit and exhaust to the block and weld a bung to the sump and fit bigger injectors then over time slowly upgrade everything like fly/clutch exh but before you do that ,AT a minimum change conrod bearings because they fail so many times on older engines