Exactly about the cost. Seriously look on craigslist or other for sheds. A lick of paint, a bit of hardware cloth, and a pretty nice coop can be made for much less cost than building one.
Personally, I have had much better luck with integrating the chicks at about 3 -4 weeks of age. I sectioned off a corner of the run with a lattice panel. I had a box in there and a dog crate for day time shelter. The chicks could go through the panel like water, but the bigger hens could only look. In a week, they were all mixed up during the day. Worked a treat.
Mrs.K
Personally, I have had much better luck with integrating the chicks at about 3 -4 weeks of age. I sectioned off a corner of the run with a lattice panel. I had a box in there and a dog crate for day time shelter. The chicks could go through the panel like water, but the bigger hens could only look. In a week, they were all mixed up during the day. Worked a treat.
Mrs.K