What about the possibility of storing it somewhere in the US? Too expensive? I know a place in Charlotte, NC that sells collectible cars but also keeps cars in storage for local owners, esp. in winter. I have seen cars sitting there indoors, batteries on a trickle charger. Perhaps with the money you save by moving south something like that might be an option. Fly in every once in a while and drive it around. Then when you are settled down south just ship it (to the US-Mexico border?) or drive it. I know. It’s easy for someone else with no financial stake to make such a suggestion.