These options are higher end.
The first are the coop/tractors available from the Egg Cartn' people at Quail Manufacturing. The mini is available at $799 plus shipping and holds up to five hens; the large is available at slightly under $1400 plus shipping and will hold up to a dozen. The capacity rating on these coops assume the birds have time outdoors to exercise and stretch, or that you move the coop to fresh, interesting garden plants and lawn at regular intervals.
Dutch Crafters, Clark Farm, David's Coops, Sheds' Unlimited. Cedar Creations, Williams-Sonoma and others offer very elaborate and beautiful "designer" coops.