The most reasonably priced component used on the Gsxr750 1999 (x) Usa (e03) Cylinder is the Gasket(14x20x1.5) (nas).
Some items from this specific schematic: Cylinder, Gasket(10.1x16x1) (nas), Stud,m6x1x32, Pipe Comp,crankcase Oil.
This Cylinder is the most expensive of the items that make up this Cylinder assembly.