Love the 58 Bertram MY as a liveaboard, it feels like twice the boat a Hatteras 58 is in MHO. The layout and overall feel of spaciousness works, plus when all things are equal, spend your money on the best rough Sea boat you can, you will really appreciate the difference when the weather turns and Mother natures comes to greet you!
I have spent half a lifetime in engine rooms without stand-up headroom, no big deal as long as access to the critical stuff (Shaft logs, Ball valves, Strainers, etc.) is available.
I have always wondered about matching a pair of Pod drives to a non-cockpit Motoryacht by means of a cockpit addition to this or any other Motoryacht design - It would be interesteing to see someone try it, have a modern, quiet and economical power package in an improved overall design with the cockpit, balance the boat out with centerline fuel tanks (aka Lazzarra) and create a huge workshop (or whatever) for the tinkerer in all of us??? Nothing $400K+ could not figure out