Okay, so there's some guy selling a "vintage mesa boogie amp" near me. Has EQ, simul-class, reverb, he said it's 100w. It's a head. Says most of the pots on the front can be pulled out. I'm trying to get some pics. He also said he can't find a serial number, which I asked for. So first of all, I wanna know if this is even a Mark. Secondly I wanna know if it's a IIc+. I know there's the loop tests and all that but I'm not going to drive over an hour to meet up with this guy unless I'm pretty sure it is. Help!