The most reasonably priced component used on the Sh100 Scoopy 1999 (x) Spain Seat is the Rubber,seal.
The five Sh100 Scoopy 1999 (x) Spain Seat component parts are all listed in this schematic.
Parts such as the Seat: Bag,service Book, Rubber Set Stop, Nut,flange,6mm, Rubber,seal are included in the Sh100 Scoopy 1999 (x) Spain Seat parts fiche.