ode Couldn't you fashion something out of metal to fit and epoxy in. Something that would be easy to cut, then grind, and stack until you get to the outside of the housing. Not sure how uniform the opening is?
When I fixed that G5 Wedge for my neighbor, I just measured the amount of washers I needed to get the swingweight up to where it needed to be and then removed one washer from the stack and filled the whole cavity with epoxy around the stack (assuming the epoxy weight was about = to one washer). The washer stack was centered and it looked like Bryson DeChambeau's Frankenclubs from his college days, but it's still there and working.
