What keys go where? 1936 Pierce-Arrow 1602 Coupe

Good Day all.

I am going through the process of getting my 1936 1602 into driving and touring condition this winter.  I’ve had this car for a few years, and an finally getting around to getting it out and about.  It came with a bundle of keys, some of which work and some of which don’t.  There are 6 locks on the car (door, ignition, rumble seat, trunk, R sidemount, L sidemount).  All of the keys appear to use the same key blank.  There are two keys that may be original to the car (very worn, but still work).

The keys I have are:

• Yale Junior stamped PR573 (looks like it could be an original brass key):  Works the door lock
• Yale Junior stamped PR723 (looks like it could be an original brass key):  Works the ignition switch
• Ilco B2 (B2 the blank identifier?):  Works the lock in the Trunk
• 2 Extra keys (one is a Yale blank) that fit into the locks, but do not turn.
• There are locks for the Rumble seat and R Sidemount for which I do not have working keys.
• All of the keys will work the L Sidemount (as if the tumblers have been removed from the lock)

I would like to get all of the keys I have identified duplicated so that I have spares, as well as figure out what I should have vs what I have.  My specific questions are:

1. On the Pierce-Arrow 1602, which keys should work which locks?  It does not surprise me that a different (original looking) key is used for the ignition than the door.  Should one of these keys also work the Trunk, Rumble Seat and Sidemounts or do these all have separate keys.
2. Are there any vendors who can cut keys using the PR codes from the two keys that have them?  Both of these keys are severely worn, and it would be wonderful to have them “refreshed”.