I'm making just what you need a 1/10 st truck scale high speed body. Currently im thinking about some med strength aluminum for the body, possibly plastic first. I have the mold half done in the last week or so. It will be capable of fitting over my tires and im thinking of some other things along the way fuel, air intakes. I went to the shop to get some more details on the thickness and strength of the body to use. Im making it so the body works with rc10gts and jatos for starters. What that means it will be made with body of those cars body posts in mind first. In the future i might make them for all kinds of models. I've checked the pricing on aluminum, titanium, and carbon fiber as possible body materials and its looking like aluminum and plastic might be what i use and maybe a mix of both. In the future i might go with a carbon aluminum body that i think looks wicked in my head.