I think we can safely rule out Dixieland-so I'd think a little regional show.
Unless somebody has first hand knowledge this one is going to be way too esoteric for us.
What's Big Rock worth? What's Jay Jessop's show worth? for $389k you're paying mostly for the route, right? Too hard without a detailed list of equipment (I mean hell, a top of the line food trailer costs around $150-200K right now)-and a route sheet, and naming the show would help too.
Only one thing to do. Matt has to buy the show so we can find out who it was.
For one dollar I'll guess your weight, your height, or your sex.