I am planning on getting like 4 of each of the following chicks. Faverolles Ameraucanas Leghorns Welsummers Buckeyes and either RIR or Australorps I may get one Roo of each and try and breed them. Should I build a 4x4 coop for each set of hens or just one big coop? If I decide to breed would I need like a breeding pen? If I go with one pen do I need to keep each roo in his own pen or let them stay with the hens?