Make bar extenders and pegs. If you've ever seen the old mgp nitro barends, make the bar extender 1" like that. So it adds 2 inches overall to the width. You could maybe have different sizes? And pegs, maybe CNC a 5/16ths hole in one side, so that if you put the axle in, you only need 1 wrench or 1 allen key to tighten. If you know what I mean?