There was a diesel powered on in my marina a few years ago. The owner constantly had issues with mechanical issues. He ended up selling to a diesel tech guy in Maine.
I actually had to do a Google search to figure out what a 274 was, but here's one back in New York though it is $60k, which seems like a bit of money considering it's a 1999. I have no affiliation with it and have no idea if it's still for sale, I just saw the ad while doing a Google search. Perhaps a few more details would be helpful like your budget, if you're willing to travel, if so then how far and so forth? Either way, good luck with your search!
1999 Grady-White Boats 274 Sailfish for sale in Hampton Bays, NY. Buy your next boat on iboats.com from dealers, owners, and brokers. Need to sell a boat? Sell it here on iboats.com. Listing: 1022418