Hello I have had chickens for several years. We have a large coop and run area that they stay in. Due to predators and neighbors.. they cannot wander the yard. I really want to construct something that will allow me to move it around our property on a daily basis.. that they could also overnight in during the warm summer months. I have looked at all the photos on this site for Tractors.. and also photos on Katy's site and more.. At first I thought an A frame.. but then read in a few places that it won't keep 8 chickens (1 is a bantam) comfortably.. What about an A frame run attached to a boxy small coop/house and the whole thing on wheels? BIG bike wheels? Has anyone made anything that moves fairly easily over uneven ground that will fit 8 chickens comfortably?