Gary, you will have a lot of company in similar situations in the next decade or so. Better to start planning now, rather than later!
Some tough questions you need to answer would be:
Do you need the money from the sale of the land to live on if you move?
Do you acknowledge how easy it is to loose your license at your age? It only takes one nasty diagnosis, as a friend recently found out. If his condition is stable for 6 months, he gets his license back, but it is a big hit to his independence in the short term.
What did you plan to do with your will - is someone expecting to get the land or some money? (Or grandchildren that could use a leg up.)
Definitely there are ways to reduce your work-load gradually, but the more active you are, the longer you'll be capable. There are ways to sell land "as is", but if your spare parts collection is well organized and looks intentional, rather than looking like a garbage heap, that will improve your odds of finding a buyer who actually wants to farm/market garden/homestead the land, rather than turning it into another piece of suburbia after shoveling everything into a dumpster.
Have you looked at pemie's
SkIP program. They are specifically trying to match people who've demonstrated basic skills, with land-owners willing to do some sort of live here until I pass then you get to keep it, sort of arrangement.