I occasionally find '68's still reasonably priced. Blackface with a silver faceplate. I was looking at CL yesterday. I tend to type in "Fender Reverb", and see what comes up. Like to find a Vibrolux for the collection, but not having much luck.
I like Carr amps too. I played a couple at Gryphon Guitars in Palo Alto. If you're ever in the bay area, and want to jangle some fine acoustic instruments, that is one of the best places. They had some electrics, but it's really the place to grab a vintage Martin.
Anyway, I liked what I'd read about Carr's. I love amplifiers anyway, and I'd love to own one...so I could take it apart