I have always heard about these scams but I never actually saw one until today.
this isn't the same one I inquired about but its the same deal, I recieved a reply with the following link
It claims the purchase is under the Ebay protection program, I called the autotrader and they pulled this item, but beware! there are lots more out there they always ask that you contact the seller by way of email and the deal is struck around the site being used.
Sounds like a great deal, $3950 however the trailer went from North Battleford across the country to New Brunswick when I inquired about it.