I guess I really got ahead of myself. I tried to not get overly excited about the pending sale, but...
In the opinion of the inspector hired by the prospective buyers, the roof will need replacement in the near future. As the buyers did not have money for a down payment or closing costs (I had agreed to pay closing costs), they did not have money for a roof and rescinded their offer.
I have another buyer in line, so we'll see what happens.
I guess I'll be in the area for Thanksgiving after all.