and boom appear to be under the bridgedeck in one of the pics.
It appears to be more dirty than decayed, but only an inspection
could confirm that.
If so, $500 is not bad, even for what wasn't much of a boat
back in the day.
For someone on a tight budget
, with handyman skills, it might be worth a look, at least.
So the owner is a bit defensive, but he's probably had issues with keel-kickers or fallen-through sales in the past.
That he will only provide a title when you pay in full and move the boat
off hi property is probably not such a dumb idea, in case the sale
falls through, then at least there can be no dispute about 'ownership'.
Although, possession is usually 9/10ths of the Law......