Re: what year is this one from?
I'm not experienced enough to answer but a few suggestions.
I know for a lot of them the year is actually part of the hull id # stamped into boat.
Assuming year isnt in any of the paperwork. Any chance that engine is original to boat, might chase that year easier...
And lastly, if you post this in the restoration or boat topics you'll probably get a lot more fellows looking at it.
Good luck.