You’ll never need more than 2, and some you won’t even need 2 of. For example, you need a Magus Amulet to upgrade Mara to Superior, but then you need a Rusted Sigil Ring to upgrade her to Paragon.
As the items all relate to specific exhibits, you’ll never use the same item in different wings.
https://www.tswdb.com/miscellaneous/museum-of-the-occult/museum-of-the-occult-master-guide/ has all the different items which are used in the museum.