People have built custom one offs... but there is one kit that I've found. http://www.proturbokits.com/ and then do the site search. Kinda expensive... but what isn't when you have someone else making it.
I'm looking at getting a universal kit from ststurbo.com the only thing I'll need is someone to make me an exhaust and intake tubing as well as a custom tune. I think it could be done for under 6-7k or so.