deposits are non refundable.... period. The buyer gives the seller a deposit in good faith that he is purchasing the item. The item is taken off the market because it is sold. The guy did you a favor giving your money back, then you still dump all over his vette.
No scam here, It just was not what you were looking for. Maybe it needs some updates or some things changed to suit you, but when you sent him 2500 bucks, you agreed to buy the car.
Dale, you are not going to get any sympathy for your cause on this board.