I don't know what the market is in your area. I think I would ask $25 apiece for mine, day olds and twice that for pullets. A proven, steady dark layer, I think I would ask a hundred dollars for in today's market. (NO, I am not offering my best hen for sale by stating the above!)
Good luck with your endeavor. Cash in if you can, strike while the iron is hot, make hay while the sun shines and all that! Now adays they say You GO girl... same thing.