I am working on a 1/6 scale M24 right now. What material are you planning on making it out of? I am making mine out of aluminum and steel so mine will be a heavy tank and as such will need a more powerful motor system so I will be using wheel chair motors. I have been working on just drawing the plans up to build mine right now and just making the plans is a long process so that the scale of everything is good. If you have more detailed questions I will be more than happy to answer what I can.