Thank you all for your feedback. Bill, your comment seems to fit my situation best. The goal is a 2 level master system, 4 users maximum. If someone loses a key I have 10 locks to rekey. If we made a Pugh matrix with SFIC being the baseline, the categories would be weighted form highest to lowest: 1. Number of keys reduced, 2. Ability to add/change master wafers one time per year, 3. ability to cut replacement keys, 4. price, 5. time taken to rekey 6. security.
See rough draft below. This is going to be an enclosed training area for training new welders. Security is not a concern beyond frustrating convenience as the training area is enclosed inside of a corporation that is locked tighter than two coats of paint:

The Red Doors are COMMON, the Blue cabinets and Office door are Elevated Access.