As an aside, on our months long boat search the nicest looking engine room was on a 1990 Hatteras 62 in Lighthouse Point, FL. (The boat was really a Hatteras 54ED with added aft deck and cockpit by Hatteras of Lauderdale) The full beam standup engine room was nearly pristine, complete with SS tubing to guard each engine somewhat, carpet on the floor and even a mirror on the opposing wall to reflect the engines beauty and make the room look larger.
HOWEVER.... the seller could produce ZERO records proving they were total overhaul 600 hours earlier (or was it 800, can't remember now). He even ignored our request for a past engine survey. (He had only owned the boat 2 years). In fact he could produce no mechanical records on the engines at all !
Combine that with the high price and we passed as there was definite "lipstick on a pig" possibility there. Probably not...they probably really were rebuilt but owner previous to him to slack to keep up with the records* and he didn't care. Still, even if we went forward and there were excellent engine survey results by us, the lack of records would haunt us when it came time for us to sell years later. But oh what lipstick it was....amazing looking engine room for that age boat.