donrae
Rest in Peace -2017
I would suggest not covering the floor of the run with hardware cloth, this will inhibit them from scratching. Scratching is a pretty vital behavior for chickens. Unless you plan to really pile on the litter. Otherwise, I'd spread that hardware cloth, or even plain ol' chicken wire, in an apron 18 inches around the base of the coop. That will deter pretty much any digging predator, be easier on the budget, and still give your birds access to the ground to scratch and dust bathe.