Edit - just lost the magic smoke out of my I3 ....And my I2 is not big enough to print this. There will be a delay before initial print. I recently busted my footrest, and snapped out the stud bolts. this design will utilize 5mm rivet nuts (nutsets), to replace the stud bolts. CAUTION! - not yet printed or tested. Photos of the build to come as I work on it. Inventor source included if you wish to make changes.