Do your own FMIC, can be done for $500 or so if you know what you're doing. I make pretty much what you're looking to make but with less pulley and without an intercooler...so, question is, do you got long tubes??
You should gain around 30rwhp/tq with longtubes in a blown application such as this. Personally I would do full exhaust before upping the boost (wait...that is what i did). After LT's I just went with a "mild" 3.3" Reichard Racing pulley (On my V2-SQ that's about 10-11psi depending on weather).
I have full exhaust, just no long tubes! I have a magna flow x-pipe!! LT's are in my plans also!!!