Off topic of chickens I'm looking for broken fridges to breed fishing worms in and millworms for my birds
Can't help you, but if you don't find any, I use 18 gallon Rubbermaid storage totes for my worms.
I do redworms, not sure if that makes a difference.
My husband used to raise fishing worms in Styrofoam coolers when he was a kid.
Freecycle.org is a good place to start when looking for things like that.
I don't have time for a yardsale I'm always posting all my stuff for free on there and people come and get it.