Hello! I am brand new to this, researching as much as I can before I set up my backyard coop. I purchased a small coop that I plan to house 3-4 layers in, but I'm not sure if it has everything I need? What are your suggestions for a (small) backyard coop/run? My husband is going to build a run on the outside of the coop, and raise it up off the ground a few feet so they can have some shade below. Inside has one of those pull out trays, a roost and a nest box attached at the side (Pictured below). Is this all they need or should we be adding anything to it? There isn't really anywhere for them to hang out aside from the roost and tray, I wondered if we should build some sort of a platform for them to sleep on? Doesn't really help that there is no interior picture but basically it has the bottom tray and the roost and box and that's it. Any suggestions? Thanks in advance!