I ended up getting an
adjustable ball mount for the Kolpin ATV hitch
receiver so the new bucket hauler
lawn wagon could ride on
a more even keel.
It was too long to fit, but
once I mounted it to the top of our work bench it only took a minute to
saw what I think is the thickest metal I've ever cut through.
The height of the trailer
still tilts back a little, but it's a huge improvement.