Cheap Car Auctions

From the ebay Id: waukeganautoauction I bought for a boat and on the listing it said shipping is worldwide, so I went ahead and bidded on the item. After winning the item, I read that the buyer wants the payment in 3 days (paypal not accepted) or else I forfeit the item and I will get a negative feedback on eBay for not paying for the item in time.
So I went ahead and paid for the item. after paying for the item, I realize that to have the item shipped to me is extremely expensive because I live in the Caribbean island of Dominica, and shipping from the USA only happens in Florida, I must have a trucking company haul/carry (Cost me $1000. cheapest) the boat from Illinois to Riviera Beach, Fl then have tropical shipping ship the boat ($2300) to the Caribbean island of Dominica. , the buyer is charging me $25 for each additional day after the end of 7 day which he has the boat in his yard. I found myself in a bad deal on ebay, and the seller won’t accept my calls. Help Please!!!!!

I told my son to put my motorcycle on ebay and he started the bid at 5,000 and I already had offers for 11,000 from people besides on ebay. Well he did not put a reserve price and the bid got all the way up to 9,200 and I was not planning on selling it for near that cheap. The winner emailed me and I told him that I was not going to sell it for that low here is what he said.

“I won the auction at $9200 which makes you contractually obligated. It is not my fault that no “reserve” price was set on that auction. I have reported this situation to e-bay and have spoken with my attorney.”

Do I have to sell it to him? What going to happen if I decide not to sell to him? Last thing were does it say in ebay that I am obligated to sell my item to the winner I mean it makes since to do so but I mean they offered as little as possible.