HI. Name is Doug, Im an old geezer, living life large. Living high in the Mountains of Idaho and going to build a 20 x 20 Chicken coop with a 20 x 20 fenced in yard for exercise. We have very tough weather here and im building the coop part out of a Glass block that has i very high R factor and i plan on putting in the North and East side into the earth for the temp benefit. Im on solar power so i cant afford to run an incubator . I plan on 8 laying boxes with four more dedicated to brooding. Water will be caught on the roof and stored in the working section behind the coop part. Need some advice on weather i should do a concrete floor or just dirt. im hoping to buy one austrolop rooster and 5 hens and 20 rode island reds to start out the venture. The coop will be totally solar powered and heated w/ self feeders and waterers. We have alot of predators , wolves, coyotes, weasels, badgers, Cougars, and lynx so its got to be pretty stout set up. Appreciate anyone letting me know where i can buy chicks that are getting ready to lay. After i buy the hens ( austrolops , then i can probably buy chicks. thanks alot. Uncle Doug.