A833 OD Iron case repair

There might be a couple of simple ways to fix that boss without expensive work

If you can work tools at all, and from what little I can see in the (small) photo, what I might try is to carefully grind the boss "flat," and then using a shifter mount, locate the proper center and drill out and tap the boss. You might even be able to drill "clear through" with no ill effects. Then make a spacer to take up the difference. I would bet with out terribly abusive shifting, that you could even run that with only two shifter mount bolts.