The component with the lowest price in the M 06 schematic is the Screw Cross 6x38.
Parts such as the M 06: R,cover,crankcase, Retainer,ball, O Ring, 8 Dia, Gauge,oil Level are included in the Cf50 Chaly Germany M 06 parts fiche.
Of all the components used in this assembly the R,cover,crankcase is the most expensive.