I'll add that I think a Selene will do what you are asking for and fit your criteria well:
Full displacement
Large Flybridge
2 or 3 cabins
most are 1 engine (w/ a get home)
Come with Active stabilization
"real" engine room (by your definition)
Most come with ice makers
big aft deck
nice swim platform
galley up design
Fuel burn on our Selene 53 (60ft LOA)
3.5 gal/hr at 1400 RPM 6-6.5 kts
6.5 gal/hr at 1800 RPM 8 kts
...but no ours isn't for sale