To be honest any material would work for the moment and most likely 100,000 rounds, I just want this fixed right for who ever gets it after I am done using it and I have walked into heaven's gates.
I have a 7 dillon rl1000 presses and rarely use my 2 two star progressives or universal, however I like knowing they are in tip top shape and are fully utilized. I gave thought to preserving them in cosmoline type preserver and setting them in a stash similar to the story sun down at coffin rock.