We are in the process of making our henhouse. It is going to be small, 4'x4'; I am looking to save on floorspace, so was wondering if there is such a thing as a feeder that can hang on a wall. If so, does anyone know where I can get one (one that doesn't cost an arm and a leg)? The other thing I was wondering, can a roost bar go over the top of a nest box (which will be covered) or is that a bad idea? Thanks!