Looking at the control rout, it might be a very tight fit. The two normal mounting holes are already quite near the edges of the cavity, and the fixing holes for the cover would sit outside of those holes. Cavity enlarging may be required. Anyway, it’s a possible option for consideration.
Yep, I do like that idea, but I don't feel confident I can make it work, even if I could acquire the switch cover. I'm sure I could also fashion one on my own, but it would still be tricky behind the scenes.
I think I'm giving up on this headstock. Somewhere along the way too much damage has been done, and there is no hiding it.
I'm happy enough with the inlay exercise, so all is not lost. I'll try to salvage the neck for parts in some way. Or I suppose I could even have a crack at a scarfenstein project sometime.
I'll probably replace it with an ST-style neck, and adjust it for a narrower speed neck feel.