Here are some pictures of the mugen to give an idea of how much room you have to mount a motor I am not sure you would be able to keep the mechanical brake or not, you can use the motor break no problem though. I dont know how their 2 speed works you may be able to use reverse :027: the length you have avalable for batteries is not very long, looks to be a little longer than the recever pack :002: I would convert one if I was confident it would be faster and quicker than the nitro version at least in a straight line.