Some items from this specific schematic: Blade Fuse 10a, Cushion,c.d.i.uni, Bolt Flang 6x20, Relay Comp.,winke.
Of all the components used in this assembly the C.d.i.unit is the most expensive.
The component with the lowest price in the WIRE HARNESS/ IGNITION COIL schematic is the Screw,tap 4x12.