This is one of my projects too. Right not my blower is sitting on a standard furniture dolly. It sits and moves easy enough, but with the blower partially raised it becomes hard to get the blower properly connected. I've been getting it on the mount, lifting it off the dolly and then connecting with the implement on the ground. I've got a front mount blower, and the mount is the source of my issues. I'd expect a 3 point blower to be easier. From what I remember the issue was not having space to get the PTO and locks connected (it is amazing what a difference an inch or two can make).
My tiller won't set properly on a standard dolly, it is a winter project. When I got it it was in a crate about the same height as a dolly would be. The problem was it wanted to roll when the tines were on the dolly but the frame was not.