Damn it. I had pages written. My computer highlighted the text, deleted it, then crashed.
I have lots of things to say, but am uncertain as to what question(s) I'm supposed to be trying to answer. I am also uncertain what the OP is trying to do - I seem to have missed a post or three somewhere.
In the interim, I'm going to say whatever it is, you can't do it - which isn't to say you shouldn't try. But moderate your expectations, be prepared for failures - learn from them - and discover what works best for you.
Two years ago, when I started my flock, I couldn't get the birds I wanted (in essence, they don't exist), had limited (if any) choice in what was available to me, and made some poor choices when I did have options, because there were things I either didn't know, or didn't understand as well as I thought I did.
So I'm making my own. In a few years, they might be close to what I want.
I've accepted that its impossible to economically sustain my birds on an optimum nutrition diet from my own grounds - though I have 30 acres - but that's not to say I can't do some things to bend my feed curve with very limited continued labor or economic inputs on my part. By creating a self-sustaining, highly diverse polyculture of plants either tolerated by me or specifically chosen to try and provide high value nutrition to my animals. Which is to say I have
my acres of weeds.
Both links, I hope, should be instructive to you - cataloging successes and failures - oh so many failures - over the last two years. We have (likely) similar soils and climates, so a lot of my experiences may be directly valuable to you in your own efforts.
There is NO "One Right Answer", or everyone would be doing it (except that one guy, because there's always that one guy...) There is, however, the best answer FOR YOU, in view of your needs, circumstances, and capacities. Science (I'm a big fan) will get you a long way, but be aware that most science is done in isolation. Reducing variables to obtain good data. Raising chickens is a System. A very complicated System - to work well, everything has to work together. Once you understand the science, there's still plenty of learning by doing to ensure the system you've created furthers your goals - or at least,. doesn't work against them.