The lowest price component in this Kickstarter Mechanism parts-list fiche is the Circlip-type-c,12mm.
Some items from this specific schematic: Washer,13.2x20x0.5, Circlip-type-c,12mm, Guide,kick Shaft, Spring-kick Pedal.
This Kickstarter Mechanism diagram displays the required parts for the Ar80c8 1990 United Kingdom Kickstarter Mechanism.