OK so I am building my coop and have a question or two. First how steep should I or can I make my ramp from the pop door to the ground? Also what about from the floor to the perch? Does it have to go directly to the perch or can it go to a piece of framing that the poop board/tray sits on? My coop is 4x6. The poop board is 24" wide and 13" off the floor which puts my roost at 23 inches high give or take an inch. The roost is centered over the poop board which only leaves about 30in of space between it and the front wall. Would that be too steep?