The most expensive part in this assembly is the Swing Arm*nh146m*.
Some items from this specific schematic: Nut,u,14mm, Screw,tapping,6x1, Cap,rr.fork End, Bolt,fr.disk Cove.
The most reasonably priced component used on the Nsr125r 2000 (y) European Direct Sales Swing Arm/chain Case is the Screw,4x8.