Suggestions on a 40k diesel s/f that is canyon capable and better than average on fuel

I am looking for some tips men and women. I am trying to buy a boat this year, and have a 40k price range proper now. I want a thing that is diesel, single screw or duals if that could occur, but my major aim on this boat is going to be inshore day journeys and the scarce canyon trip when I get a charter or have the fuel $ . I have forty grand and really can’t push it past that unless the asking price tag is shut. What would you advise looking for? Anybody know of nearly anything for sale that may possibly fit the bill? I like the 31′ Northcoast hull, but they are a minor challenging on fuel with twin diesels.. Calling out to everyone with a suggestion. May not be the perfect time to buy a boat for me, but I feel that you need to be capable to get some quite excellent specials out there no?

Thanks in advance,

Kevin