Some items from this specific schematic: Shim,starter Clutch Hub, Roller(15x13), Washer(13.3x25x0.85), Bearing(25x29x9.9).
This Clutch Set,starter is the most expensive of the items that make up this Starter Clutch assembly.
The most reasonably priced component used on the Gs850g 1979 (n) Usa (e03) Starter Clutch is the Spring.