The Camshaft(s)/tensioner assembly is constructed from several parts from which the Camshaft-comp,in is the most expensive.
Some items from this specific schematic: Bolt,sprocket Fitting, Bolt,flanged,8x35, Sprocket,cam,34t, Guide-chain,rr.
The component with the lowest price in the CAMSHAFT(S)/TENSIONER schematic is the Bolt,flanged-small,6x.