so i am about to build my third coop, and this time we have grown out of the available fenced in area. i would like to build a larger ark-type (mobile) coop/run and the hoop style seems smartest since it is pretty lightweight and inexpensive. most i have seen in my reading about them have no emphasis on a secure coop. we have many predators (raccoons and foxes for sure) and the actual housing inside for nighttime must be predator proof. i cannot electrify anything ( i live in a tourist attraction) and it has to look pretty nice. anyone have pics or links that show secure housing in a hoop type run? to clarify, i need the coop inside the hoop structure to be moveable WITH the structure. this will be a breeding pen for about ten birds (LF), likely two roosters and 8-10 hens. thank you!