The most expensive part in this assembly is the Ignitor Unit.
Parts such as the Electrical: Cap,starter Motor Lead, Wire,starter Motor Lead, Cap,starter Relay Terminal, Seal,high Tension Cord are included in the Gn250 1999 (x) (e02 E04 E22 E24 E25 E34 E39 E71) / P37 Electrical parts fiche.
The most reasonably priced component used on the Gn250 1999 (x) (e02 E04 E22 E24 E25 E34 E39 E71) / P37 Electrical is the Screw(6x10).