Good day Carver Yacht people!

I'm looking at a 2005 41 CMY with the 375HP 8.1Gi engines and after what I consider to be a thorough search (2 Hours) I can't find anybody with opinions on if the 8.1's are a good choice for this boat. Seems to me like they may be a little anemic for a 41ft boat @ ~24K lbs. I could be wrong, it's happened before.
OTOH 750HP sounds like a a fair cop. Is there another advantage to the Diesels other than low end torque and reduced Fuel Burn? Should I buy this boat and just enjoy it, or should I maybe save up some more money and get the 44 CMY with the Volvo diesels? The price point is very significant, like 100K. The 41 is in awesome shape with what appears to be some choice upgrades, and lot's of new stuff. I hate to miss out on a great boat just because of a misinformed apprehension about the Gas motors. Also, I'm Gas engine mechanically inclined, and the Diesels would be a learning experience, but not one I'm unwilling to undertake. I learn fast and like mechanics.
As for use, mostly it would be Lake/River use with the notion that I might want to do the Tenn/Tom to the Gulf and go to the Keys. I think that would be the ultimate Retirement Gift to myself, and sounds like an exciting adventure. This would be my 4th boat, so I'm no newbie, but would be my first "Big" boat, and I am certainly not arrogant enough to think I know everything.
I'm really torn here, any help?

Thanks,
Jester.