I'm working on a bass that has the electronics routed through the body, and the pots in it have a bushing that's 10mm long, and an overall shaft length of 20mm. I'm thinking of adding a control plate to it as well, which means I need even more bushing length, probably 15 or 20mm. I was hoping for 4 1M Audio taper smooth/plain shaft pots and a rotary switch either from Alpha or CTS (Maybe Bourns, but I don't like how loose they feel). I searched through Mouser, DigiKey, Small Bear, Allparts, Guitarelectronics.com, Guitar Nucleus, GuitarFetish, and not a single one has a pot that would fit. I looked at Alpha and CTS for custom applications, but knowing those companies and from what I gather on their site, they probably wouldn't deal without dealing in bulk (or at least it would be an outrageous price for just 4 and a rotary switch). Any suggestions on how else I could approach a solution?