http://www.treas.gov/auctions/customs/vehicles.html
Other cities to find auctions, including vehicle auctions.
Also,
I wonder if they will allow the "EXPORT ONLY" vehicles to be used for PARTS SALE? You know. Export it, minus the engine. Or just strip it and call it done. Or does EXPORT ONLY mean MUST EXPORT. Will they consider a DESTROYED VEHCILE a copmleted sale?