Ys, this is why I don't generally recommend simply "meeting the minimums". Sadly, most make at home feed recipes don't measure up to even the very low bar of "minimally acceptable commercially"."at minimal cost". Almost no research is done on what is best for the chicken, ignoring the cost of the feed or housing etc. As you say,
If someone is prepared to spend a bit more (as you yourself are) they can do a lot better by their birds than the bare minimum required to get the most eggs out of a hen as quickly as possible and then kill it.