You will get some stretching with the checkerboard skins. There are a few out there and you can see how checkerboards are affected.
I will say this before you get started. At the moment all the Mustang skins are taken up. Not sure if HTC will do a cycle of skins at some point though. Would be nice if it could happen. Certain maps with certain skin sets.
Nefarious shoot me an email from our forum and I'll shoot you a basic template.