Fairly new spars in good shape can command 75% of the new replacement cost.
Sails are "wear items" and rarely get more than 50% of new price (unless only used once or twice) and go down rapidly from there, depending on how heavily they've been used.
Im just wondering if I would save more selling it after I but the boat or getting the owner to keep it and reduce the price... I saw somewhere they were €700 new so I COULD sell it for 350, but then again the owner might give me more than 350 off the price of the boat... oh decidions decidions!!