if it was me i would trry to use Selleys Knead It, also avaliable at bunnings. its a 2 part eproxy putty but sets like steel, can be tapped drilled painted on!
Yeah, it's
amazing stuff. It's strong enough to repair flogged out wooden kick out holes. I've even used it to mold/sculpt SS boney flippers and saved a bomb. Gotta work fast though, it sets up PDQ.
