The component with the lowest price in the TRANSMISSION schematic is the Ball-steel,5/32.
The Transmission is made up of components including this Shaft-transmission Ou which is the most expensive.
Some items from this specific schematic: Washer,toothed,25.5x3, Gear,output 5th,25t, 2nd Gear,drive,18t, Snap Ring,25.9x1.2t.