I'm trying to think of a way to mount the motors to the boogie if anyone can help me with the drawing of the brackets thank you.
What about a length of 1/4" wall aluminum channel shaped like the attached picture. You can mount this bracket to the bogie however you see fit. If you mill a slot at the saddle end in the bracket you could tie this end to the saddle using a metal hose clamp or a zip tie. Metal hose clamp may be better if motor will get hot.