Of all the components used in this assembly the Base Comp.,winker is the most expensive.
Some items from this specific schematic: Bulb,winker, Lens,l Winker, Nut,flange,6mm, Base Comp.,winker.
The most reasonably priced component used on the Cb1300 2009 (9) Australia / Two Winker(cb1300/cb1300a) is the Screw Tapping,4x1.