Thanks for the comments guys, spelling mistakes corrected.
Overdriven, I had considered the Kyosho body but I'd rater lengthen the chassis and have a better spread of shells as well as more room for the LiPos. The Tomahwak comes with 12mm wideners on each side but with a set of TC hexes I should be able to get the wheels inside the shell no problem.
The battery are Kokam 3 cell 2000mah pack left over from my heli days. The motor is just in there to make sure it would all fit in there.