On the booster subject,
Might even have to go to Ace hardware and get one of thier nylon bushings from the nut and bolt section and then sit down with a moto tool and "Git er Done"
Done that before for window track rollers.
Thats what I was hoping i'd find at the bearing supply place, something I could modify. I'll try the Ace hardware thing and see if they have something I can modify for my use.