more info is needed; but it does seem at least a bit edgy.
make, model, age?
Some people are strange, and have strange or innacurate ideas about things like taxes, etc.
Some older boats do not have HIN numbers, right?
red flags, at least.
You are right to be asking these questions; and this is probably hte right place to be asking; though I'm not the best one to answer them .....;-)
I got an Old Fat Boat
She's Slow But Handsome
Hard In The Chine, but Soft In The Transom
I Love Her Well, And She Must Love Me
But I think It's Only For My Money
. ..... Gordon Bok