Some items from this specific schematic: Bolt,flange Sh 6x, Bolt,flange,8x49, Sleeve, Seal Set,piston.
The most reasonably priced component used on the Cb1300 2008 (8) England / Mkh Rear Brake Caliper is the Bolt,flange Sh 6x.
Of all the components used in this assembly the Caliper Sub Assy, is the most expensive.