I was wondering if I could get some help with some breed selection. We are trying our hand at chickens in a couple of months. My husband is going to build us a chicken tractor. We plan on using the plans for the Catawba ConvertiCoop and adding two feet to the length to make it 4'x10'. We plan on getting two silkie bantam hens just for pets, and then 6 layers. I want, first of all, to make sure our coop will be big enough for our birds. Then I really want our layers to be nice friendly birds as I have two kids that love animals as much as I do, that's pretty important, also I want good layers that do well even when it's cold. I live in South Central PA so it doesn't get horribly cold, but we usually have a week or two when it's pretty cold. What would you recommend for someone just starting out? I was looking at buff orps, but I'm wondering if 6 of them would be comfortable with the 2 silkie bantams in that coop, as I know they are bigger. Thanks for your info and help!