I'm starting construction on my chicken tractor this week. I plan on buying 2 standard hens and 1 bantam hen. I'm going to have the food/water mounted to a door in the center of the coop(covered). I really want to make my own containers that are easy to remove/clean. Besides water...how many feed containers do I need? I was planning on getting a chicken feed and offering it 24/7 but I see so many other options, scratch, oysters, etc. What do I really need for my girls? I'm planning on building a dusting box and offering DE for my girls to bathe in.