One of the reasons I wrench for a hobby is to keep myself active and able. However, I don't do stuff like that anymore. My health is just too valuable. I DO move stuff like that and more, alone, but I use a handtruck or a jack or a hoist.
When I was 20 I disassembled a barn at my parents house with a neighbor, George. He was 70 then and I sure learned a thing or 2 from that old monkey. He worked slow but steady. I know now that he was thinking many steps ahead. He wasn't about to get hurt because he had too many things he wanted to do with all that barn wood. George still putters around living in the house he built in 1951.
