The most reasonably priced component used on the Sgx50 Sky 1999 (x) Spain / Std Body Cover is the Screw,4x12.
This Cover Set, Body (wl) is the most expensive of the items that make up this Body Cover assembly.
Some items from this specific schematic: Cover Set, Body (wl), Screw,4x12, Cover Set, Body (wl), Screw,tap 5x16.