Wow, whoever got it - GOOD LUCK. I was the first to call.
I live two towns over from the guy and talked to him last night at 10 PM. Said I would take it and call him around noon today to set up the exchange of amp and cash. He agreed. I gave him my number and confirmed I would take it and to call me if anything came up on his end.
Low and behold - Called him at 12:45 and he told me he was worried I wasn't going to call and he really needed the money since his car got repo'd and so sold it to someone else who was coming at 2pm today to pick it up.
I normally wouldn't be so pissed but I was calling him on my way back from the bank with the cash...
A-hole.