These are great. But I need a movable secure run. Tractor concept, but instead of a small tractor a large chicken corral of heavy 2x4 wire roofed with chicken wire, that can be secured with landscape pins, with attached apron which I will set large stones on. And since a coop will be needed - do I really need 3 sq ft per hen? that will have to go "on wheels" and be movable as well. The idea is secondary housing for my adult hens who don't want to lay when my pullets outgrow the green house in a few weeks, and a place I can stick all the laying hens if I have to go on vacation for any reason. My dogs patrol the back yard a bit too thoroughly, don't want anyone bitten trying to get eggs. Don't want hens to start eating the eggs.
Since this is for large hens, I don't know how badly I need the hardware cloth or even 1 inch chicken wire over the bottom couple of feet. I do not put perches near fenceline within raccoon reach.