I am in Sacramento CA and these will be my first chickens. I am starting with 4 and have researched the breeds that suit me. In order to get what I want locally the schedule would be as follows: 2/21 Black Austerlorp and Buff Orph 2/29 GWL 3/7 Brahma The feed store said adding in a 3 week window should be fine. Any suggestions? Should I not do this?