Some items from this specific schematic: Tube,fuel,5.5x180, Cap Assy.,fuel Ta, Clip,tube 5.0mm, Collar Tank Sett.
Of all the components used in this assembly the Set Illust*type1* is the most expensive.
The most reasonably priced component used on the Xr250r 1998 (w) Australia / Mk Fuel Tank is the Screw,cross 6x16.