You guys!!!! Alaska Wal Marts have a LOT of different things than in the lower 48! And then there's the customer service section that will pack what you order and take it to the landing strip to ship out via float-plane or ski-plane to whatever place is closest to your bush cabin. A whole nuther world up there! (Though in Sutton, Anarchy probably doesn't need to take advantage of that, just saying it's available at most major, and many minor stores up there!)
OK, yeah I'd definitely do away with the extra cockerels, and go with the cheaper feed, or else, at least half and half, mix em to stretch the better stuff. Don't forget when you're feeding them that chickens are little velociraptors, they're at the very least omnivores, at the worst, they're cannibals. If one ever dies or if you fall down dead in the lot, they'll have you stripped to the bone pretty quick! (good way to hide evidence!). They eat meat and they'll fight over the bones! I know a lot of people get all squeamish about it, and I wouldn't feed mine meat from a rendering plant where I didn't know what or where it came from, but meat or meat scraps are yummy to them. Get the meat scraps from the cafe too, and hunting season is coming, get all the scraps from your friends that hunt. I know most will feed their dogs first, but see what you can do.
I think you're right about having more hens will mean you can sell more eggs, which means you can buy more-better feed, and it will be less cost per bird. To a point though. If they're overcrowded, they won't be as healthy etc. ...