Steve --- your coop has turned out just fabulous, and looks as though your gals give it 2 thumbs up (well, they would if they could ... LOL).
I think the separate breeding area is totally great -- I didn't know much about separating broody hens until mine decided to sit on a clutch of eggs (due ANY DAY) and I started reading the threads here on BYC for information. My NEXT project, which is in the works, will definitely have a brooder area.
Many thanks to you, as well, for chronicling your coop project and providing pics, materials list, etc. I, like you, really get into the old farm building designs and wish I had one of those old barns myself, instead of the pole barn I have now. Those sterile metal buildings don't do ANYTHING for aesthetics!
Gwen