Thanks all. Just talked to the owner. A younger guy who wants to get rid of his Grandad's sialboat to buy a power fishing boat.
Here's more gauge:
Built in 1971, 2 x dead 12 Volt batteries, Last Survey in '96, never sunk, no fires, '97 sails and rigging, No balsa core, no blisters, no soft spots, Atomic 4 30 HP gas engine with 500 hours...last overhauled in '95, Kerosene stove. Suposedly pristine interior. I'm in the area so am going to take a look at it on Sat.
Sounds like a project.