On my Meridian 469 you absolutely must have at least 2 people to change the oil filter on the generator. I am kidding you not! One person (the idiot, likely me) will be fully inverted down the hatch, at least to the waist and most likely to mid-thigh. The second person will be holding the first person by the ankles or knees. If the idiot doesn't communicate for more than a few seconds he is likely unconscious and the second person most likely needs to scream for more help because pulling the idiot out straight up would be almost impossible for most people without said help.
And that is all because of having two engines taking up all the space in the ER. A single engine would leave plenty of space for the generator.
And I haven't talked about changing the oil filters on the starboard engine. The engine will have to be completely cold because you will be squishing your left shoulder, your neck, and your head into a pathetically inadequate space and then, if you have not lost all of the feeling in your left hand you will have to remove the filter with just the very ends of your fingers, hope you don't spill all the oil if you drop the filter, which is very likely, and THEN you have to try to screw a new filter, full of oil, and only being held by those very finger ends onto the threads while dancing the filter from one finger tip to the next, and not dropping the whole d**n thing.
So, I rather prefer the single engine on my North Pacific 49 all things considered, but other than that I guess I have no opinion.[/
Sounds like you should consider a remote mount for that oil filter.