Hi, i have 2 barred rock hens 1 “special black” hen 1 amberlink hen and one easter egger roo. They are about 20 weeks old in a 4’tallx4’widex8’long coop with access to a 20’longx5’widex6’tall covered run. Is this enough hens to keep a rooster? Do I need a coop door if run is secure? I have a light on a timer from 5:30pm till 8:30 pm in coop (40watt led natural light) now cause they wouldn’t go in coop at night without light. Should i put heated waterer in coop or out in run for the northern wi winter? Should i heat my coop bellow a certain temp? Any suggestions i would greatly appreciate thanks