The component with the lowest price in the F-7 schematic is the Screw,tap.4x16.
Parts such as the F-7: Stopper,luggage, Seal Rubber A, Box,inner *nh1*, Cover,lid Hinge are included in the Scr100wh 2003 Spacy 100 Jf13-100 Japan (jdm) F-7 parts fiche.
The F-7 is made up of components including this Box,inner *nh1* which is the most expensive.