Vast Vast Vast Vast Vast
Buy the turbos, fueling and clutch from them, also have them tune it. Talk to Prince there and I bet he will get you a good deal if you buy it all together. Dont even bother with doing an OTS chip.
I paid $2K for 2 tunes (e85 and 93) and fueling (RS4 airbox, MAF, 60lb injectors, 255 fuel pump) and labor, you get lifetime free tune adjustments, and my car runs like a champ. I got my turbos, and OEM hardware (bolts, inlets etc), OEM RS4 clutch from AWE for $3K. Only thing I regret is not getting the Vast clutch disk.
EDIT: And Vast is having a spring sale going on right now.