Lots of good info - and sincerely appreciated!!! The transom saver sounds like a good idea too - but it'll have to wait until the boat gets home to Maine. Hopefully I-95 won't beat it up too bad. All of the boat's fresh water systems (head, sink, bait well, fresh water wash down, and tanks) were winterized per "Airstream" procedures before leaving Florida. The motor is scheduled for a complete tune-up and service locally.
Thanks for all of the help!
2003 GMC 3500 D/A, CC, LB, 4x4 and 2000 Airstream Excella 30. WBCCI 7074