Sorry for taking so long. I drew out the shape and cut it out of sheet steel manually. It took forever and I still had to make adjustments to get the right belt tension. I still want to just buy one of those cheap ebay motor mounts. There are sets with the belt, pulleys, and motor mounts for smaller wheels. I believe the set I got was for 70/73mm wheels. I got the one without the motor mount thinking it would be better to just make it custom. In retrospect, I believe it would’ve been easier to just cut out that notch on a premade mount. I basically used a hand saw, drill press, and dremel. It took me a few days to hack away into the right shape, then I epoxied it to the truck with the strongest kind. It won’t budge now. I did a lot of the adjusting for the belt after I had already epoxied it and it never moved.