The component with the lowest price in the Optional Parts(Converter) schematic is the Spacer,t=0.1.
The six Kvf360-b9f Prairie360 2009 Usa Optional Parts(converter) component parts are all listed in this schematic.
Some items from this specific schematic: Weight-ramp,4700-7700, Spring,converter Driv, Spacer,high Altitude, Bushing.