Oh awesome!! Thank you! Mine is a different model, and pretty dang old as well. I got it second hand and the kids, of course, took it over before I could use it for anything chicken related.

I thought the no floor was an issue, but I love how yours is raised with the wood floor underneath! Perfect easy solution.
The other issues with mine are the 2 "bay windows" - I wasn't really sure where I could attach the hardware cloth but I guess if I didn't care about losing that extra space on the "window sill", I could do exactly what you did.
And also, it would be kind of drafty. (The picture of the windows shows the amount of space that's still there when they're closed.) I guess I could simply duct tape the windows and door shut at all the seams for the winter if I wanted to go the easy way, but I'll still have to cut wood to fit in the bay windows and the window that's in the door. Unless I can think of another solution. Do you have harsh winters where you are?
Anyway, thanks so much for humoring me! And letting me hijack your thread. The is a project a few years away for me, but I'll get to it eventually! I love seeing other peoples ideas!