Glen cant you get some heaters and a jacket with heating wires?
It is so much effort moving it all up to the house and back...and as to stuff wearing out I assure you that is not a concern... personally I love to see that the bar be que has rusted out or other stuff has worn out as I say to myself " well I outlasted you" and just replace it...and whats the worst that can happen..you get to buy a new mount.
AND so you are getting old you dont have to give in to the cold you just beat it with new stuff...put in a heated floor
alex