Dont waste your money, ditch the 3800, get a LS1 and a T56 and call it a day. You'll save money go faster and have more fun.
I was going to say the same thing. Usually figure $3500 minimum for a custom turbo kit and that is if you know the guy. The ls1 f-body stuff sells for $5000 a pop. You only have two less primaries so yo are not going to get it that much cheaper.
-Geoff