The most expensive part in this assembly is the Switch Assembly,handle,left.
Parts such as the Left Handle Switch (gs450ez): Nut,cable Adjuster, Screw, Grip,left, Bolt,lever are included in the Gs450sx 1981 (x) Usa (e03) Left Handle Switch (gs450ez) parts fiche.
The most reasonably priced component used on the Gs450sx 1981 (x) Usa (e03) Left Handle Switch (gs450ez) is the Nut 6mm.