The Barker B1four cavity is roomy for three pots, adequate for for, cozy with five. I could have added two more switches from the Taurus kit if there has been space. That said, changing a pot for a switch is a simple, no solder process. Amazing.
I chose the volume, pickup blend, treble, bass and mid pots. The only soldering was the pickup leads, the output, and the switch. I chose a button switch instead of the usual switched 1/4" jack.
Here's a shot including the Gotoh two-cell 9v battery box:
The neck is Ebony over Padouk. Here's the front of the headstock: