Here's a hoe I'd be willing to test if someone dropped it off.
Might be tempted to put it on a utility trailer before winching the trailer itself uphill.
TE301H Honda Towable Excavator This trenching machine's dependable 9 HP Honda GX270 industrial engine powers the hefty hydraulic pump that lets you dig down to an 8 ft. Depth with the included 3-tooth trencher bucket while you sit comfortably on the padded seat. A hitch coupler is included for...
all-excavators.com
Side note , I added a Gorilla helper spring to a trailer gate after crunching my back again lifting it last spring. . Added aluminum rollers instead of the stock plastic ones. Works great! They came as a pair but the bigger one is enough.
Gatelatch in the way but cable slides over it's round stock nicely.