I have a 10 x 10 shed that I am converting to a coop. I have built a wall so that the chickens will have approx 6 x 10 and the remainder of the building will be used to house the feed and such. The nest boxes are built so we can get the eggs from the storage side. I am looking at aluminum windows on ebay now for it. I will put 4 windows in with 2 facing south in the chicken side for winter solar heat and two in the east and west walls in the storage side for light and ventilation. There are basically 2 sizes available 14x24 and 18x27. Which size would you think would be the best for this setup?