Don, Ebay will not charge you for an item that got bid on and won by a deadbeat bidder.
Keep all of your records, emails, etc., together.
Make a call to them...they are actually very, very good with customer service.
It happens...
Now...the other side of that coin....
Call him man to man and see why he went through two or three confirmation steps to bid on it, then backed out.
I bet money got tight or the old lady but the kebosh to that....call him out on it and ask him the "Real" reason why...