This is our first time having chickens, we have 10 RIR's at about 3-4 wks old. We're planning on having a coop/run combo. We have an lean to that we're going to fence in two sides and the other two joining sides will be walled up. The nesting boxes will be in the corner of the walled up sides,so the rain and northern wind is off of them. Will this work or do the nesting boxes need to be completely closed in. The floor is a Grass and Dirt Combo. Do we need to use any kind of litter/bedding or will the existing ground work, also wondering about cleanup when it comes to the floor. Any advice is greatly appreciated. Thank you for your replies.