I looked high and low for the post I made about my dolley, which is a tricycle design for the hoe for my
L3010.
It is real heavy as well.
I used 3 6" steel casters - I think each has a 600 or 900 pound capacity. They cost about C $18 each.
Anyhow, the beast rolls easy on a concrete floor. If you use rubber wheels, they have huge rolling resistance, and the smaller the diameter the greater the resistance. Steel has very little rolling resistance if they are on a hard surface.
A tricycle design has the advantage of being more maneuverable - you don't have to 'point' two swivels in the right direction to move. So I have one swivel at the front (under the bucket) and 2 fixed under the main part of the hoe.
I would consider these '2 part' designs a bit of a hazard if the hoe 'relaxes' over time.
Anyhow, if anybody wants pictures of my dolly I could probably re-take them, though I would prefer not to have to unhook the hoe tyo do it because I'm using it.