+1 on Black Rose Customs.
You can also buy stuff from
http://www.mouser.com/. The catalog is overwhelming, but they've got Orange Drop caps, CTS pots, Belden cable, Neutriks plugs, you name it.
I'm surprised by StewMac. Did you call them up and give them a chance to make it right? Their prices usually aren't the best, but I've only heard good things about their customer service.
Chip