I am building a new coop because I have cochin babies coming out of my ears right now! It is 4' x 3' and i can't remember the height right now. So how many chickens can i house in a coop this size? (bantam & standard please) I was going to have interior nesting boxes but that would decrease the Sq. Footage so it would be better to build them on the ouside of the coop, right? (like the hinged roof type) I want to have good Ventelation and so i dug out an attachment for my drill that will drill out 3" holes in the plywood and i can cover them from the inside with hardware cloth. I should do that on both the front and back, right? For access, Would it be better to have a hinged roof or side door? We've built a few coops but since moms last one she built to sell I wanna make sure this one is right in case i ever have to sell it in the future. Thanks for the help guys.