The component with the lowest price in the LEFT HANDLE SWITCH (MODEL D) schematic is the Nut 6mm.
Parts such as the Left Handle Switch (model D): Switch Assy, Handle Lh, Washer, Bolt,clutch Lever Holder, Lever Assembly,clutch are included in the Gsx250e 1983 (d) General Export (e01) Left Handle Switch (model D) parts fiche.
Of all the components used in this assembly the Switch Assy, Handle Lh is the most expensive.