I think you should clean it up a little before you even try to sell it... Man, that things dirty!!
You'll never get what you put into it. But just as an answer to your question, I'd guess anywhere between 6-10 grand for it, depending on the time of year, buyer, and your feelings at the time. Hell, I'll put an offer of $6900 on the board right now.,,,but I really hope you don't take it. Like the others said, take it out of the slip, make her a trailer queen. That will save you 2 grand a year right there.
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1987 V20 w/1987 150HP Yamaha on a Shoreland'r Trailer
1978 16.5 Airslot w/1996 120HP Force on a Four Winns trailer
1996 V21 w/1993 200HP Mercury on a Shoreline Trailer
All towed by a 5.7L Hemi Durango.
If God didn't have a purpose for us we wouldn't be here, so
Live simply, Love generously, Care deeply, Speak kindly.
(Leave the rest to God)
Silence, in the face of evil, is itself evil. Not to speak is to speak, not to act is to act. God will not hold us guiltless.