Farout, my mate was trying to sell his CC GLxi Coupe with a full 4G93T engine conversion for ages with no luck, now that it's gone, everybody wants one!!
I'm with Dean - don't bother turbo'ing your stock engine, you'll fork out big $$$ on buying the bits and getting somebody to weld you up a manifold, etc and it'll never be as good as going for a straight 4G93T swap.