We are building a new run/coop for our 4 girls. The coop part is 5ft x 3ft. How would you do the litter? Deep liter? Pine with sweet pdz just sweet pdz. I don't think the floor is big enough for a poop board. What do you think? I'm attaching a picture. We are obviously still mid construction and would put anything on the ground for the run 8x6?