Z bar alignment

The more I look at that post#1, the more it looks to me like the sheet-metal just gave up and twisted; like alluded to in post #2. Having that spacer there allowed a lot of twisting torque to pass into the sheet metal. I think that whole side needs to be move out board. If that sucks the downrod to far over, then I'm guessing the Z-bar is too short. If it falls off the inboard stud.that would prove it.
But if moving it outboard centers the downrod, the inboard stud can be moved out with washers. That end has a much stronger anchor.
If nothing else fix the sheet metal and weld on a large plate to spread the load.
Check your clutch departure, you may have the wrong ratio bar and the clutch-fingers were pushed too far transferring a lot of pressure back into that anchor.If you have a diaphragm clutch, you need to remove the assist spring off the pedal assy.