Wow, looks great! The only thing I might want to consider is finding some way of rigging up a removable roost on one side to the chicks can have some fun. :)
I came home today, and it turns out that my girls have been laying for the past two weeks or so. I have two hens, and with today's egg, I've got 12 total right now. I feel guilty for not checking earlier.... (during the winter, their food and water gets moved outside for convenience.)
So...