Mercury II trem bushings

With the damage to the body at the trem studs on my two Mercury IIs, I need a solution that's going to hold things in place.

This 'lockdown bar' from AxesRus should do the trick but as you can see the bushes are much larger than the Takeuchi ones. There's about 2mm in it.

This means I'm going to have to drill the bodies which I'm not so keen on, but currently they're scrap anyway. It occurred to me that I could also put some small screws in the bottom of the bushes so they screw down into the body there, but the heads would need to be just the right size.