Also, I take down food every day. I try and put out only enough for the day. It actually varies quite a bit. If a lot is left, I feed less the next day. If it is completely empty I feed a bit more. This really keeps me from wasting feed.
I found that if you over feed or have it constantly...
Do know they are your chickens and your set up and money. Spend it how you want.
I do think AArt gives good advice, start out with the bare minimum and add as you need for your set up.
I have had chickens for 25 years, and I only have the feed and oyster shell on your list. Which I get from a local feed store. Along with low black rubber bowls that I use for winter water and feed bowls. I use waste hay as bedding, you might not have that available.
I do have two galvanized...