I was lucky enough to pick up a probably-90s Kramer guitar for $20 at a garage sale a few months ago. It was in pretty okay condition, except that the bridge had been removed and a large chunk of wood had been glued in to the resulting cavity. What exactly the last owner was attempting to achieve I don't know. Some kind of hardtail conversion perhaps.
Seeing as most of the guitar was still intact and in decent condition I decided to take on a bit of a rebuild. I had a spare Jaguar bridge laying around after upgrading my MIJ Jaguar to a modified Mustang bridge to better deal with string skip. First on the agenda was taking down the random chunk of wood glued into the bridge cavity to be level with the rest of the body. Primarily a router was used at a set level to bring things down. Then, a standard bog was applied to fill the gaps. Then, the holes for the bridge thimbles were drilled and the thimbles installed with epoxy.
The Jaguar bridge requires a tailpiece, so a piece of scrap steel RHS tube has been pressed into service. Currently it is slowly being crafted into shape so as to suit the utilitarian look of the guitar. The last work has been a lot of sanding to smooth the surface of the guitar and prepare it for painting.
Next up is a coat of paint and perhaps a special extra pickup in between the bridge and tail for ridiculous art-rock noises. Stay tuned.