At 64 I can still out work the youngins .
I live in an area that is 0" to 12" of clay on top of solid limestone. The aquifer that my 800' deep well draws from is just about out of water, and there are no water mains within about 6 miles of our place. My only option is rainwater collection and treatment. I've been slowly preparing for that. About two years ago, I put about 1500 ft of 3", 4", and 6" collection pipe in the ground. I had to use two rock saws (one was a 40 ton monster) and a jackhammer to do it, and it took me one long, hot summer to get it done. I'm not quite as old as you, but almost there (incidentally, I'm also a native Cheesehead).
The rock saws don't leave a clean trench, so after using the saws to cut the rock into dust mixed with clay, I had to shovel the trenches. I used a mini-excavator for the wide trenches cut for the 6" pipe, but for the narrower pipe, the mini-ex bucket was too wide. I hired some young fellers from one of our construction crews to help shovel on a Saturday. Wow, are they lazy! I run our engineering company, but if I ran our construction company, I'd go out of my mind. I cleared 2' of trench for every 1' that
two youngins, not even half my age, cleared. They actually stood leaning on their shovels watching me work. At noon, I paid them for a half-day's work and sent them packing, and said that I'm not paying fellers to watch ME work!
This country's in a world of hurt if Russia, or China, or North Korea decide Biden and his hapless administration are defeatable...