Wife picked up a couple of chicks at the feed store 3 weeks ago. They are really growing fast so I need a quick outdoor housing for them. I have a large plastic dog house I thought I might use for a coop. It is about 32" deep 28" wide and 28" high with sloping sides. I thought I might make a pvc frame to fit inside with a welded wire shelf in back for nest boxes and a perch on the side. The roof unsnaps in back to remove eggs. Except for the door it will be all metal and plastic for easy cleaning. Will drill some holes somewhere in the house for venting. I'm not sure how large the nest boxes should be or how much head room the chickens will need over them. I have a black star and a RIR hen. Thought I would make a hinged door that lies down for a ramp from the run. Should there be a waterer and feeder inside the coop as well as the run? I'm in OK so temps are not extreme. Any advice appreciated.