I had a friend who got some Battery Hens cheap. Be prepared for what may come with them. His would never roost, they never learned how. Or use the nest to lay their eggs in. They had combs that laid over.(from cramped cage conditions)And they refused to come out of the chicken house. If he brought them out they would run right back in. It was a very sad sight to say the least.
They had very shortened lives,even though my friend went above and beyond to help them.