The easiest way is to use Oxygen Updater
Reboot to twrp recovery
No wipe needed
Alternative to Oxygen Updater is let ...
Thanks for all the info. It's helpful. Only thing is I'm not sure what you mean by the latest build. I found the nightlies that I linked in my last post, and a thread on xda where the last build was from May, I think.
Can you link me to the build...