Excellent article, every point was struck!
Superb when the system is up,
even better when it is down.

Junk silver dimes and quarters to start,
adding rounds and bars as feasible.
Eagles are nice but .999 rounds are better.
"What is that word numismatics you keep saying?!"
Spot plus least is the buy. Rolled.
While adding more junk dimes steadily.

And base metals like @pocketechange.
Save all coins possible, they will retain
their face value. Maybe even inflate.

@jdawg Thank you for that valuable information.