Go get yourself a Hi mount manifold with external wastegate fitment, 250~,
get an external wastegate ~300-600 depending on what you buy,
get a Garrett GT3076R from slides or soemwhere cheap, ~1800 or so,
get a computer after that, with bigger injectors and a bigger AFM,
then be happy with ur brand new car pretty much.
If you want stealth mode,
get a GT30R hybrid with IW, 1,800-2000 or so,
keep you stock low mount manifold,
get a cheap but good manual boost controller,
set it to 9-10psi and keep it there until you find money for other stuff.