I feel like it is priced close to $3k too high. Also without Mike B. putting eyes on it I wouldn't trust that it is a C+. It is marked like a IICI, and dispite what anyone says, there were late IIC amps that would pass the loop test. I have one that I had Mike B convert to a IIC+ and it passed the loop test before I shipped it for the mod. There is a thread on here where I was talking about it and BoogieBabies himself popped in and relayed an amp he came across that was also just a IIC that passed the test. And even though the seller said he spoke to Mesa and they confirmed it, they honestly don't have the best records from that time, and depending on who you spoke with at Mesa I have seen many instances of them having incorrect info. Yes I know they are the company that built the amps but sometimes fans of things know way more than the creators, just is what it is. So until Mike B holds that amp in his hands and says "yes it is a C+ we forgot to mark" I ain't sold on it. That serial number is close to the accepted factory run, it is still low enough to have slid out of the factory as a C. But bottom line is it is waaaaaaay over priced no matter what.