Of all the components used in this assembly the Flywheel is the most expensive.
The Circlip is the lowest priced item on this 011 Alternator Cover schematic.
A sample from the products for the 011 Alternator Cover include: Screw Tcei M6x1.00x30, Generator Cover, Ball Bearing 6003 Tn9 C3, Lens, Ignition Inspection.