Some items from this specific schematic: O Ring,54.6x5.7, Bracket-shockabsorber, Bolt,socket,8x20, Nut,flanged,16mm.
The lowest price component in this Frame Fittings parts-list fiche is the Bolt,socket,6x14.
The most expensive part in this assembly is the Stay,fr Step,rh,f.s.b.