Sakura Racing D4 Rear Belt Tension Pulley V1

I recently bought a new rear drive belt for my Sakura D4 R/C drift car, and I could not find any suitable tension pulleys for sale so I made this one on Tinkerkad. It uses the original screws to the rear of the chassis that hold down the shock tower on the motor side but required

4x M3 screws (length doesn't really matter but 7-10mm should be plenty)
2x 10mm outer, 5mm inner, 3mm thick bearings

Height is adjustable as well as lateral position with the mounting holes for the axle, and fi