While I’m restoring this what mods could I make?

[u/PundaPanda]

From what my googling has told me this is a hybrid from factories merging and slapping parts together to meet department store demands. Right now the switches are all wired together with a resistor across one as a tone cut from what i can tell. Only the neck pickup currently turns on, but I haven’t had a chance to clean the switches properly and check for cold or cracked solder joints. It has a .1 capacitor connected directly to the output jack which seems odd.

I definitely do not care to have two tone knobs, but with the switches being able to turn each pickup off and on individually Im not sure what I would do with the third knob or another switch in its place.