Of all the components used in this assembly the Bar,front Footrest is the most expensive.
Parts such as the Footrest (gs400n,en): Bolt 8x40, Pin, Lock Washer, Pin are included in the Gs400e 1978 (c) (e01 E02 E04 E17 E18 E21 E22 E24 E25 E30 E34 E39 Footrest (gs400n,en) parts fiche.
This schematic depicts all components used in the Gs400e 1978 (c) (e01 E02 E04 E17 E18 E21 E22 E24 E25 E30 E34 E39 Footrest (gs400n,en) partslist.