When I looked into a kit like this last year, the price was outrageous. Just stumbled across this kit offered by Straub Tech. at a price I can swallow.
LS bushing trunnion kits - Straub Technologies
From memory, the other kit I was drooling over used Bronze bushings with "self lubricating" properties. I'm curious and would like to know a little more about the "proprietary bushing material" used in the kit offered by Straub Tech. Features and benefits of the material? How does it compare to bronze?