I would try to Google something in/around Italy. Shipping costs are a killer. Corvette engines didn't only come in Corvette, Chevelles, Camaros, ect.
also try the Dealership there to see if you can get a LS engine. More power and less weight better gas mileage
the Pontiac GTO from around 2006ish also had the LS engine in it.
There is also a site that I use.
scroll down and there are 3 locations there in Italy.