I am thinking of getting a flock of chickens for my family to eat as well as selling at the local farmers market. Breeds would be Rhode Island Red, Black Sex, Red Sex, and Barred Rock. I would get 30 of them, an assortment of all. If we ate 2 dozen a week, how many dozen eggs would I be able to sell? Im talking about a farmers market June-September so it is summer production rates.