Sorry for using the term mojo.
My friend has a beat up 60's Supro guitar which is great for noisy music (and straight noise). There are tons of great sounds available in this guitar just plugging it into a fuzz and a tube amp. The whole guitar is also really resonant and responds well to bumps and knocks (all over the guitar), it's very lively. Problems though: loose neck pocket, loose frets, some pickup switching options don't work, there may be more I'm forgetting. It's been beaten up over the years, and isn't structurally sound, to the point that he's worried it could break during a show. Last week, the input jack was busted when I accidentally leaned something heavy against the guitar while a cable was in the jack. So now, at least some repair is required to use the guitar again. I'm worried that a standard repair job will snuff out the wild character that makes the guitar so interesting in the first place.
I assume that the electronics are the critical parts here. Should the wiring definitely be left alone?
Is it possible to get this guitar structurally sound, while keeping the ability to squeal, shriek, clang, etc? Is it crazy to think that there are techs out there who would be good at fixing up a guitar like this?