Ok, so it looks like $18 for a "kit" made up of a bushing and a bolt.
http://www.truckandcarshop.com/41-57car/c41_126.html
So I assume that means two per leaf spring, $36 for both ends of the front leaf springs?
I think I'll go ahead and get this and also get the Teflon that goes between the leaves, pull them and paint them. Then that's done - check. Move on to the next thing.