First this is a really well built coop. The pictures are well done and provide a lot of detail for an experienced builder. An amature may find it hard to duplicate. More detailed descriptions and some measurements, angles, etc would be helpful. The roofing nail length tip is good, a lot of people, I think are shocked that roofing nails are so long that they stick through roof sheathing. I also would have like descriptions of the pulleys you have for opening doors. the picture make it so one can figure it out but a few words form the builder might make it easier to duplicate. I think this article will inspire people, especially as it shows what can be done on a small lot