So I have decided to use this dog house for my tractor. I want to add lawnmower wheels to it and attach a run. The problem is i also need to have an opening somewhere to get in to clean and collect eggs. I have a circular saw and am handy but I can't decide where to cut a door or add a nest box. Any ideas? PS: This is about 3'x4' and VERY heavy. It will house 2 white chickens.