What do you guys think I could sell my boat for?

1991 Moomba Boomerang 19' closed bow, seats 6, 351 windsor with new carb/tune, bimini, extended pylon, nice stereo, single axle trailer, used in fresh water only. Hull and gelcoat are in perfect condition as it has been garaged since day one. Interior is good but does have some sun cracking, but nothing serious. What do you guys think I could sell this for fairly quickly at this time of the season? And how much if I waited until next summer to sell? Thanks for the help!