Find a used set of sammy springs and make a custom leaf pack. Use a torch to heat and bend the old retainers straight so you can get the leaves apart. Use a grade 8 or 10 cap bolt to make a new center pin out of (you may need to drill the spring perch out a bit to fit the head of the cap bolt). When you put your leaf pack back together, spray paint them with dry graphite lube. Also, leave the spring retainers bent out straight, but drill a hole in the ends of them and put a cross pin through them. this way, your leaves will still stay together, but you get some extra droop because they arent banded together tightly. If you want to make the additional leaves shorter so they stagger in the pack, diamond cut the ends. this way they will still travel over each other smoothly without the teflon pad thats usually on the ends.