Here are some pics of my coop project. It's a variation of the mul-t-coop from the DIY Chichen Coop book.
I picked up some used windows for $40.
Roost lifts up for cleaning.
Sliding door is a re-purposed refrigerator shelf.
Inside you can see the pull cable for the sliding door.
I'll add more pictures once it's painted & the side coops are finished.