There's actually a company that makes turbo kits like that. Don't remeber the name, but they used one of their kits for a 'Vette on Two Guys garage a while back. Worked real nice as it didn't get as hot as a normal turbo because of the exhaust gasses being cooled down by the time they get to the turbo. Also, no intercooler needed for the same reason. Piping amy not be too bad, as things can be kept pretty much in a staight line inder the frame.
Chevk out the Two Guys Garage site for a possible linkto that company.