Without a title and # they will register it as a Homebuilt boat not a SeaCraft. So when you sell her one day your selling a Homebuilt boat. That doesnt effect the ride but it does effect the value. I would deal with this first off. They will also need its weight from someone that can certify its weight like a weighing station as well as length.
FellowShip
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Just for the Grins
Official 23 SF Antique Classic SeaCraft Owner