That's interesting, because I would imagine that most people that raise chickens would also be handy enough to build their own coop. I'm sure you could save a bunch of money and get it exactly the way you like it.
My wife is the farmer, I'm a computer graphics nerd but i'm actually pretty handy with tools and wood working. I would love to build stuff but I don't have the room for any workshop tools. In any case, if i did have the room, it would be taken up by a brewing system