Really appreciate you sharing your EFI folder. I have the same MB and similar CPU as you. I was wondering if you could confirm whether "sleep" and "shut down" is working for you on your build?
I cant get my machine to sleep, and when i shut down it immediately restarts. And so i am forced to shut it down forcefully by holding down the power button. If your build works with sleep and shutdown, then i might use your EFI folder to see if things improve for me.
I've the exact same motherboard and CPU and i can't get to the install. The maximum I could do is getting to the apple logo ( after a little bit of initialisation and verbose ), it stucks here with the mouse cursor moving.
What was your procedure EXACTLY, if you remember ?