I am planning on getting dual purpose breeds- Black Australorps, Barred Plymouth Rocks, Rhode Island Reds and either Golden Sex Links or Speckled Sussex. I also am planning to get some White Leghorns just to put in my freezer. Can I keep them all together? I know once they go outside, they will need different rations, but how big a deal is it if I mix a laying ration with a meat building ration? I am limited on space at this point, and don't have the room or finances to build two different pens/coops... HELP! Thanks