Here is an excellent writeup on ventilation.
https://www.backyardchickens.com/web/viewblog.php?id=1642-VENTILATION
You will need pine shavings, hay, straw, or some similar material in your nesting boxes, both to encourage them to use them, and to pad the egg so it does not crack when they lay...
I can help some:
1. Should be good for the egg laying. Docile is really related as much to the individual chicken as the breed, esp. with crosses like yours.
2. 24 sq ft of coop with 60 sq ft of run is minimum. More is always better. (4 sq ft per chicken for coop and 10 sq ft of run per...