I'll take those Sky - Shackle Hangers and tension shackles off you hands. I'm in San Diego and can cover the shipping costs. You can PM me or email me at: firstname.lastname@example.org and I'll send you the cost of shipping.
Curious - the linked add-a-leaf says it's for the factory 9 leaf springs, but all the pics I'm seeing have it added to the 4 leaf springs. Is there a different add-a-leaf for those with a 4 leaf spring, or will a "add a leaf for a 9 leaf spring" leaf also work on a 4 leaf spring?