My husband and I were given this building which was used for pigs. We were going to build our own chicken coop rather than buying one. Instead, we decided to just turn this into a coop for our new babies. It’s about 14x8 with sliding doors on each side. I would love to hear everyone’s ideas on what you think we should consider while building. Also, there’s rubber mats on the floor. Should I clean those up and put bedding over them or completely get rid of them?