Mel,
The above posts may be spot on, but not sure about one part of your post. You were unable to contact the OWNER with the coach purportedly at a consignment lot.
If you mean the owner of the coach, that would be normal. People put their coach on consignment so that they don't have to deal with the buyer. In some cases, the consignment lot can convey your desire to talk with the seller and they will return the call.
I am NOT suggesting this is on the level, but not sure we have enough info to suggest it is not. Indeed, first thing I ask is WHERE CAN IT BE SEEN. Get an address, google earth it, contact local BBB, etc or post where it is and someone here on the forum may be willing to go by and eyeball it.