that is a steal! Congrats!!!! and from what i've read... I bet your 9 girls will use 1-2 boxes. lol. We have 12 girls and we built 6 boxes, i've been told they'll probably only need 2. lol silly birds!
I got mine for free from a friend that is done with chickens forever! I'm not trying to 1 up you mine is only a10 box and I had to replace the fabric bottoms in all the boxes and remove several chicken carcasses out of it.