On the plus side she looks fair with no bondo. You can't see the frames. That speaks of good welding.
First and foremost one would have to look at interior hull
finish, that's where they rust.
We looked at a similar Colvin in Florida
, that was only 10 gage steel
, pretty darn light.
But, all said and done I would think that at best the hull
is worth maybe 20% of the finished boat
I'm thinking $10 - $15 thousand more reasonable.
Here is another big steel
schooner. More reasonably priced for the level of outfit. FWIW, this also says 10 gage hull, but I don't believe it. Or the displacement