Of all the components used in this assembly the Battery Assembly (12v) Ftx is the most expensive.
The component with the lowest price in the BATTERY schematic is the Protector(170x95x3.0).
eight components are shown in this Gsxr750 1998 (w) (e02 E04 E18 E22 E24 E25 E34 E39) Battery exploded diagram.