My neighbor came over today and said he's got this metal shipping crate that he needs to get rid of soon. It is 8X16 with a metal floor and metal frame on all four sides. I think he said there's a roof too. I was thinking this could be a fantastic coop frame for someone, so I'm putting up some pictures. Please PM me if you're interested.
and the 4th wall, which can be bolted back on: