[Masteryota]

I would also keep things simple to start out. As for the mounting of the axle, you will probably want to sleeve the existing tubing with something thicker and stronger, as they were not really designed for live axle stresses. When you do this, you can use square tubing to make it easier to mount the bearings, or use round and use the weld on plates. I think you will find you may need/want to add some bracing back there and move the engine plate to a more centered location.