I have been thinking of this. Once the chicken palace is built, the coop that they're in now can be used for quarantine, and I can keep an eye on Craiglist for any broody hens. Not too long ago, someone was griping about their hen going broody again and saying if she didn't stop it, he was going to get rid of her, and I'm thinking

Gimme the hen!
It would need to be a smaller breed, because I don't want them getting beaten up. At the chicken show, I saw a RIR about the same age, and she was quite a bit larger.