It’s hard to see from this photo, but the area below the insert is quite thin. It’s a bit wider than the screw, but with some supports. I don’t know if there’s enough to take a new insert.
My plan is to clean everything up, then epoxy the existing inserts in place, screw the hinge in, then put some epoxy around that too, leaving room for the other screws that come from the other side of the case.