What make the value of this Lapierre Superlux are its original equipment and its good shape.
So clean it, grease the seatpost and the stem quill so you can adjust their height, oil the moving parts, change the cables and their housing, add a new cotton handlebar tape and that should be ok either you keep it or sell it.
Caution with the Simplex derailleurs! The plastic (delrin) is very fragile : if you move the front derailleur, don't screw it too tightly or it will break...
Last edited by Filochard; 11-13-16 at 10:01 AM.