I'm now allowed to keep up to 5 hens. The neighborhood association changed the rules. Yeah! I have a permanent 8' x 8' coop. I want to be able to move the run around it to give the grass a chance to recover. My design would be an 8' x 8' x 3' high, hardware cloth covered run, that I could move around the coop. I'll have pop doors on three sides of the coop and a fold up top on one side of the run. I'll keep 3 to 5 standard laying hens in this area. Is this practical? Total weight of the run is around 110 lbs. My yard is fenced to keep away dogs, but redtail hawks nest in trees at the back of my lot and regularly take rabbits in my yard, hence the covered run. The chickens will be locked in the coop at night and I will have fold down predator guards around the run.