The most expensive part in this assembly is the Balancer,crankshaft.
Parts such as the Crankshaft Balancer: Balancer,crankshaft, Gear,crank Balancer Drive, Metal Crankshaft, Washer are included in the Gs450s 1988 (j) (e04 E22 E34 E77) Crankshaft Balancer parts fiche.
The Spring is the lowest priced item on this Crankshaft Balancer schematic.