I have 6 20 week old pullets at the moment, one just started to lay. My friend has 4 hens he's trying to get rid of that are about 2 years old. My run is 144sqft so i know thats big enough but my small A frame coop is only about 4'X5'. Do you think 10 chickens would get along in a coop that small?? seems kind of tight already... I know they would sleep fine when i put in another roost, but walk around space is limited.