At least from my experience, a penurious LF shooter of long standing,
with a freezer full of out of date Royal Pan, Super XX,
one can assume the film still works,
that it will have a development time close to when it was new,
and that developers that Kodak suggested when it was new,
will do well for it now that it is old.
The best place to begin shooting old Kodak film
is to use the suggested developer and developer time
and assume an EI of 50, regardless of the film.
Make one shot, develop it and contact print it.
You'll find out in a hurry where you are.
Also, ignore Zone I, it doesn't exist. It just doesn't.
The one, single, and absolutely most useful thing you should have is
a Kodak Film guide, from the '70-s, preferably.
Use it to get acquainted with the film you have in the freezer.
I've attached the data that Kodak gives you. HC-110 has proven to be a VERY good developer for out-dated films. Get a grip on the film you have, and then, by all means, try out your personal developers to see what happens.
PERSONAL RANT: forget about about 'fog'. Don't worry about it.