Hi all. I'm 100% new to chickens and my 6 little chicks are coming in on April 27th. I've been researching extensively and am trying to find information on what type of chicken coop I can build that meets certain criteria I have: 1. I want to be able to move the chickens onto fresh grass often 2. I want something secure against predators (there are MANY where I live so they won't be free ranging) 3. I want something that will keep the chickens warm in the winter and cool in the summer for the Maine Climate (which can be in the negatives in winter and in the 90's in summer) 4. Something inexpensive: I'm not looking to win any contests on beauty...just functionality I am having trouble deciding on a size, and style because there are so many. I want something simple and easy and natural for chickens. I intend To build this, not to buy a prefab. What do you recommend? Thanks!