Some items from this specific schematic: Washer,20x0.9, Washer Spline 28x, Washer Spline 25m, Gear,m-3 M-4.
The lowest price component in this Transmission parts-list fiche is the Bolt,flange 6x14.
The Transmission is made up of components including this Shaft Comp,counte which is the most expensive.