My wife and I are in the process of building an 8'x8' coop for our Silkies. Right now we only have 5 but will be getting more. Probably no more than 10. My questions are these 1) I live in Md. and am trying to build it right but keep the cost down at least for now. Do I NEED to insulate and finish the inside of the coop or is this more of an option? OR will I need some kind of heat lamp until I DO insulate and finish the inside? I have seen a lot of coops in colder climates NOT insulated and finished, but don't see where they have any auxilliary heating. 2) Can I use a wooden closet rod as a roost or is a 2x4 better for Silkies? 3) How high should I place the nesting boxes for the Silkies? Sorry for what are probably obvious answers to the more experienced of you, but these are our first. Thanks for the help.