I have a coop that is about 8ft.hi so i want to run a ledge around the one wall about 1/2 way up to add some use of my vertical space maybe 3-4ft. wide and about 10ft.long.Then some roosts maybe ladder type up to the ceiling.Can I then use that added space on the measuring of coop space per bird?I also was wondering about any ideas for shade in my run it has no trees and will be an area about 60ft.by 60ft. behind the barn.