I agree that the Move-It is a good solution for the A-Frame. We ordered a custom one to fit with our Agility-A-Go-Go AF (it has "feet" on the corners and we needed the forks on the Move-It to fit between them). We got the stainless steel version, also (for rainy Oregon). I can't pick up much weight but I can move our AF around with no problem with the Move-It. It just takes 3 or 4 minutes to get the Move-It in place, and then one person can pull the AF to its new position. We got it within 4 weeks of ordering it.
We got our dogwalk with wheels on it from Agilitek, near Monmouth, OR (Geary Cutting). We are very happy with that solution--big balloon tires that move well on our soft cedar hogfuel surface, as well as on the grass. The wheels are on casters--we turn them sideways and block them with wheel chucks. I've attached a photo of the DW. I was concerned that the DW would bounce with the fat tires but it really doesn't seem to at all.
Deanna Lyons
Willow and Bree, the agility Collies