My DH and I are getting a 10' x 20' storage shed that we're going to convert into a chicken coop. A little less than half the shed will be the main coop. It'll hold my flock of about 20 - 25 (eventually) standard size hens. I want to have a brooder pen and a grow-out pen - and maybe a pen for a broody hen, too - some shelves to keep my cans of feed, etc. Rather than having the nest boxes accessible to me from outside, I want to walk in the door of the shed and get them from the back of a wall of the main coop. Any ideas for how to configure everything? Right now it's blank 10' x 20' canvas.