So I strapped the new mounts on the top bar of my 80/60 build. I gave it to a friend but he has yet to pick it up. Unfortunately since I put the top beam away it warped in ~20 degrees of rotation so I will get it replaced. It was good enough to test mount with. As designed it’s a dream to just sink 2 screws and be done. For my permeant build I will add 6mm ( 1/4 inch ) bolts going through.
Here are some pictures using the backside screw holes to mount the motor forward.