Some wonderful and valuable guns you have recevieved. In addition to being secure in your residence and, insured, they should be stored out of their cases and away from humidity. You mention that you're in south LA... Multi-barrel sets are a bit of a pain to store in a safe out of their cases but every effort should be made to keep rust off of them. There are products such as RIG, Ezzox, Balistol, etc... that can be used to wipe them down with which helps prevent rust.