["We're not spring chickens anymore", he says.
"Shut UP!", I reply.]
What we ended up doing: purchasing a submersible pump that could pull up water to 1/8th of an inch, attaching a 100' hose, and taking the hose to wherever we need to water. This is plenty long enough and reaches our current and planned garden beds. For the soon-to-be-installed fruit trees, I will probably still use the dolly method but only fill the barrel half full. I'll then fill the water irrigation bags from the barrel. Or maybe Spouse will think of yet another, better way...
[pic: the Pools o'