Chicken question...............

Hi -

I have a question for those of you that have, or have had chickens. I am new to raising chickens (I have 26 Rhode Island Reds). Although my coop is big enough to support all of them (140 square feet) I probably do not need that many, and have a couple of people that are interested in purchasing a few from me. If you were to sell a 5-6 month old pullet that was just getting ready to lay, how much would you charge? For those of you that sell eggs to friends and neighbors, how much do you charge for a dozen eggs? Thanks in advance.