Some items from this specific schematic: Screw,oval,6x60, Weight,strg.hndl, Rub,handle Wt.a, Key,blank (no.1).
The lowest price component in this Handle Pipe/top Bridge (v/w/x/y) parts-list fiche is the Bolt Flange,dr.6x.
The most expensive part in this assembly is the Key Set.