Before I revamp the half-built coop in our backyard to essentially steal your design, I have a couple Q's.
How big did you make the laying boxes? They look undersized in the pics, but pics are deceptive.
I like that the windows and back doors open, and see that as a possibility to open the coop up in the summer to allow ventilation. Have you considered a wire mesh insert for the back doors so you can leave it open on really hot days? I am thinking that rather than having the doors open left/right, maybe have the back open up/down like a tailgate on truck with a cap. Then you could replace the lower half with the screen insert to get a through-breeze. between the windows and back of the coop. I know I can get gas struts at Princess auto, but I don't know what their lift-load is and that door coming down hard while I cleaned out the coop could hurt! Maybe have the struts to help with lifting, and a latch to hold it up.
Another idea is to build a clip-on trough so that when you rake out the bottom of the coop everything goes in the trough which can be dumped into the trash quick and easy. I am thinking maybe a piece of raingutter attached to shelf brackets or something similar so it could slip in under the plywood floor.
I really like this design though, Very clever.