I'm looking (and have been looking for years) for a 1960's ampeg AUB-1 fretless bass. It was the first fretless bass guitar and seems to be even rarer than I thought. I play in a 9 piece rock band and play both URB and bass guitar but it is getting to be too much to carry around. I think the AUB1 might be the middle ground I'm looking for. I'd be willing to trade my current upright bass (Czech plywood top with Biesele pickup) and electric bass (Fender jazz) for one of these old AUBs. Does anyone (or anyone who knows anyone) care to lend some info on where I can find one? thanks.