I'm finally moved (mostly) into my new house and am loving it! Now I'm ready to start building a home for my chickens. I've researched breeds and would like to have about 10-11 hens & 1-2 Roos. I figure with chicken math, that could easily put me up to 15-16 birds at any given time. Besides, I'd rather give them more room than they need. They will be in a moveable tractor with as large a run as I can handle. Does that equate to a 64 sq ft base? Possibly 8' x 8' x ?' high for the coop part? How high/tall is yet to be determined but probably 6' so we can walk-in. Does this sound like it would work well? What materials would you suggest that would be strong but lightweight for the construction of the coop part and/or the run? Any particular recommendations on wheel systems? Thanks in advance for any suggestions or advice. Y'all are great!