Thanks for the tips!
I found govdeals accidently. The bus I was about to buy was PERFECT. In really great shape so I was prepared to pay $7k for it. When I put the VIN in google to research history the only thing I found was the auction where the guy had purchesed it to re-sell on CL. Turns out he only paid $2,600 for it through govdeals. LOL!
So ya, I'll be hawking the auctions when I return from Mexico in April.
I'll check out those FB groups though- thanks!