Some items from this specific schematic: Brkt, P/s Pump, O-ring, 16.7x1.8, Bolt, Special 8mm, Spacer, Pump Seal.
The O-ring, 15.2x2.4 is the cheapest item from this partsfiche.
The P.s. Pump-bracket is made up of components including this Pump Sub Assy,p/s which is the most expensive.