The Fenders assembly is constructed from several parts from which the Fender-front,ebony is the most expensive.
Parts such as the Fenders: Fender-comp-rear,fr, Fender-comp-rear,rr, Fender-front,ebony, Washer,6.5x20x1.6 are included in the Kz700a1 1984 Usa California Fenders parts fiche.
The component with the lowest price in the FENDERS schematic is the Bolt-upset-wsp.