The component with the lowest price in the GASKET KIT A schematic is the O-ring,9.6x2.6.
Check out any of the nine Gasket Kit A components enlisted.
Parts such as the Gasket Kit A: O-ring,7.8x2.2, Gasket,breather P (mca), Gasket B,cylinder (nas), Gasket,head Cover (nas) are included in the Vfr750r Rc30 1989 (k) Germany Gasket Kit A parts fiche.