I have V4 Talion that I race on a local track nothing organized. The rear chassiss brace snaped off at the bottom chassis mounting screw elongating the hole and also broke the 3drc wing mount as well. I an odd might I say. So I am looking for a new chassis. Will the exb work with the V4? Is it worth the $ for a lightweight M2C one or? Also tower to tower brace really needed? Thks