Has anyone had any experience with their Chicken Tractor 101? Here it is on MPC: http://www.mypetchicken.com/Coops_without_Chickens-Chicken_Tractor_101-P360.aspx For reasons too long to number, I need to buy a coop already made. I have it down to the Chick-n-Barn (with modifications), and this one. I'd love any advice you may have. Thank you.