Tons and fodeez.
(What else am I going to say???…

)
But seriously, I think you are overthinking it, JMT. Everyy one of these mods would have benefit, and if you keep the rig long enough you will do them all. Pick one that interests you the most at the time - for whatever reason - and go do it. Then, move on to the next.
I’ve been wrenching on my rig constantly for 18 years using this philosophy - and I have never run out of interesting and challenging projects to do. They do tend to get bigger as you go - but your skills also improve to support the big stuff.
The only thing that sticks out on your list as solving an immediate problem is the bead locks. Everything else is an enhancement. So do that first. I am a big fan of the Racelines.
Trust me, you will be just as happy picking the next project from your list by throwing a dart. As you said, it’s sometimes more about the journey than the destination.
Now get off your ass and do something!