As my wife and I are new to having chickens and due to the shear amount of them I will end up with (see introduction past for story), the "small" prebuilt coop just wont cut it so I am in the process of building a much larger coop from scratch. I have plenty of building experience but wanted to get your thoughts and opinions. It is going to be a dirt floor 16'x16' coop with a 16'x50' covered run.