I would like to get 50 meat birds this year - I am thinking at the end of June. Questions, questions, questions: 1. I am thinking of using a 10x10 dog kennel with wheels added so that I could move it around daily. Is 10x10 big enough for 50 birds? 2. I know that meat birds do not have to perch. Would I just cover 1/4 or so with a roof? Perhaps aluminum? 3. What about breeds? I am a little troubled with the thought of a bird that is bred to grow so quickly it may have a heart attack. 4. How long would you recommend I "grow" them? Thank you in advance for your thoughts.