Hello to all who are following this thread.
I've learned about and tried, in this order:
1. PRAM
2. SMC
3. Safe Mode
Confirmed nothing in trash, except child and parent directory markers:
.
..
and
.DS_Store
Confirmed no Finder .plist because still can't launch Finder.
If I understand Safe Mode, there is nothing for me to do, once the machine is booted, right? It does its magic automatically, right?
If I was supposed to do something while in Safe Mode, could you tell me what that would be?
So on to System re-install, right?