Some items from this specific schematic: Bolt(6x39), Plug,spark(cr8e), Screw ,6x16, Head Assy,cylinder Fr.
The Pin(6.2x8x11) is the cheapest item from this partsfiche.
The Front Cylinder Head (model K3/k4/k5/k6) assembly is constructed from several parts from which the Head Assy,cylinder Fr is the most expensive.