In an attempt to prepare my market plan for the forklifts industry I have hard time understanding how much major componets represent from a total cost of a forklift.

I would like to build a table, in columns having classes, 1, 2, 4/5 and on the row % from total cost of major components: axles, transmissions, wheels, engines, mast, controls. (e.g. in class 4, an axle represent 15% of total cost of the forklift). this could be very helpful to understand from any suplier perspective.

Would very much appreciate if anybody can give some directions.