Some items from this specific schematic: Cap,chain Adjuster,f., Washer-plain-small,8m, Bolt,socket,6x18, Nut.
The lowest price component in this Swingarm parts-list fiche is the Nut-hex-small.
The Swingarm assembly is constructed from several parts from which the Arm-comp-swing,f.m.gr is the most expensive.