I plan to house 6 hens and 1 rooster. I have been thinking if building it 7x3' in dimensions is large enough, I have considered 4x10 but I wonder if it would make it more difficult to move around. Also can anyone link me to blueprints or plans for a chicken tractor? I want the triangle shaped one I belive, more appealing. My main concern is the layout for the coop part, would 3 nest boxes be enough, and what would you suggest as far as adding roosts? Where should they go and how many?