Your best bet might be to look into Tork Tech's Supercharger-less kit for the '99-'04 Mustangs.
http://shop.torktech.com/99-04gtsupe...ablower-1.aspx
Its designed for those owners wanting to addapt the '03-'04 Cobra blowers to their non-supercharged vehicle. This is probably as close as you'll get to bolt on in that dept. You'll probably have to change or modify some of the accessory brackets, vacuum and wiring, but the hard part (the lower manifold itself) has now been done for you.
In any case, at $1,899.00, the price is certainly right.