Interesting thought, David.

Since PS racks are now mostly rebuilt and may be of questionable quality
and are certainly difficult to obtain on short notice I don't really have
a great amount of faith in them.  My engine is a Subaru with the PS pump
driven by the same belt as the alternator.  I think I will get a belt that
will just drive the alternator so if the PS system develops a big leak I
will be able to limp home with the alternator turning and not the PS pump.
It's OK do drive like this in an emergency but driving a spinning PS pump
without fluid for a thousand miles might cause it to catch on fire or at
least seize.  An alternator only belt is cheap and there is a very small
chance that it would be used.  But, if it was needed, it would be oh so
nice to have.

It's important to think ahead about possible problems with a 32 year old
vehicle with 344,000 miles that you are depending on taking you 2,000
miles across the country on a somewhat regular basis.