My '96 Repsol MC28SP has a Maxton shock fitted so I don't need the original SP shock that was also supplied with it.

The shock can't have been on the bike long as it is in practically brand new condition - no corrosion at all, no chips in red paint on spring.

I have no idea of value so.... what is this shock worth - don't want to waste anyone's time but if it's only worth peanuts out there I'll probably keep it with the bike.