Why stop at twins? Trips:
https://youtube.com/watch?v=iVumR3M1iN8
If you are going twins, df140 is about the worst option I can think of. Not enough power to plane on a single engine, but just as heavy as for example a merc 150, which runs great as a single. Would not run a single df140 on a 23…
Why do you want twins? Whats the logic? If the goal is to be safe offshore, then maybe buy a bigger boat?