Hey all - just trying to do my research before buying something and wondered if anybody had advice. Amp in question is an Ampeg GS-12R (Reverberocket), supposedly a 1966, which seems to be a reasonable guess. The price is well below average from what I'm seeing. I will be seeing it in person, but want to be versed enough to evaluate it. Seller seems to be a decent person and has responded to every question I asked to the best of his ability. Handle is broke, but can be replaced. Tolex has some damage, but nothing extreme. Looks kind of dirty in some pics. See pics below, but seems the chassis isn't seated correctly?The seller provided two videos for me. -One is him cycling through all the controls while playing. No scratchy pots. Trem and reverb seem to work. Sounds fine, but hard to tell much from a phone video. -One shows the back of the amp and tubes. Here's what I know: -Seller bought in 1981. -Didn't play it for a few years at one point. -Took it out of storage a year ago and it squealed when he turned it on. -He took it for service from a tech that I am familiar with and it was repaired and given a clean bill of health. No other details on service. - Tubes are 7591a, 12Ax7, 6U10. He says they are original to at least when he purchased it. -It has a 3 prong cord. -Reverb makes a hum when amp is idle. Assuming it sounds fine, any red flags pop up? Anything I should specifically look for? I'm probably most concerned about the potential for dumping lots of money into the amp. If there was a squeal and it was repaired, what might that indicate? Should I still take it to a tech? It would probably be the same guy that saw it last year. What about the death cap? Can I assume it was taken out when the 3-prong cord was installed? I would plan to gig this if I bought it and want to make sure it's capable of that. I'd likely put a Cannabis Rex i have in there because I've read it's a good match and the stock speaker is supposedly underpowered. On a side note, anybody with input on their experiences with the amp are free to share! Thanks!