Help Identifying Center Cockpit Ketch

[Foreverunstopab]

Hello everyone. I'm a bit stumped. I think I've found my new home but cant seem to find any information on her. The owner says its a 1974-75 Bristol 40 ft or so with a full keel, center cockpit, ketch rigged with kutter head sails, walk through aft cabin. Documentation shows Net 20 with a 9ft draft, so I know that's a little off. I'd like to find out more information on her. I've searched up and down on the internet for Bristol with no hits on the layout. Any ideas? Here are the pictures I have.