my initial ideas would be...
put all three pots in a straight line backwards, and mount a 5 way selector under them, parallel to the bottom edge of the V.
or do something similar, but have a master vol and master tone, and use a rotary switch disguised as a knob as the selector?
or same as above with a dual concentric pot to give you two tone controls, change the knobs to tele style metal knobs.
or mustang style pups and control!
i think the mustang layout would be pretty cool! 2 single coils and slide switches at the top?