Ok,
ATP's VR6 turbo kit would probably be the best kit to start with. If you want more power, you can get a larger k04 turbo, and a EIP chip.
Other options might be a
Matrix Engineering kit, or a
EIP kit.
I don't know anyone with the
Matrix Engineering kit, but everything else they do is great, so I have no reason to beleave their VR6 turbo kit isn't.
EIP is known for their bad customer support, but great products. Unless you live close to their shop in Baltimore, I wouldn't recomend doing buisniss with them.