The component with the lowest price in the CLUTCH schematic is the O-ring (26h).
Parts such as the Clutch: Washer, Plate (33m), Spring, Clutch Boss, Primary Driven Gear Comp., Push Lever Comp. are included in the Fz750 1987 2kk Sweden 272kk-322e1 Clutch parts fiche.
This Primary Driven Gear Comp. is the most expensive of the items that make up this Clutch assembly.