The component with the lowest price in the ALTERNATE (ENGINE)(FOR AUSTRIA) schematic is the Joint, Carburetor 1.
Parts such as the Alternate (engine)(for Austria): Muffler 2, Muffler 1, Joint, Carburetor 1, Muffler 1 are included in the Fj1200 1987 1tx Europe 271tx-300e1 Alternate (engine)(for Austria) parts fiche.
The most expensive part in this assembly is the Muffler 1.