I've done similar analysis on the turbo options you mentioned and it looks like the GTX2867R would be excellent for this car. Combine it with a twin scroll T3 turbine housing and you would have a very responsive setup with great top end power:
http://www.atpturbo.com/mm5/merchant...egory_Code=GTH
At least, that's what I'd do if I were going for a turbo setup on this car.