I normally put the 2002-4 models which come up more often for £395 but others will tell you they are worth £400-£500
All depends what you feel it owes you I guess. Quick sale it will go for £400. If your willing to hold onto it for a while until the right buyer comes along hold out for more. Had it been 2 stroke it would have a bigger appeal at that HP, lighter, no storage issues etc.
Peter @ Boatsandoutboards4sale ~ firstname.lastname@example.org
~ 07930 421007