Pros and Cons
A thirty footer probably just doesn't have enough tankage. Regarding the 9.2 in general, I think I would avoid a boat with an integral keel because of the potential for grounding in shallows and coral. I'd probably opt for something with lead keel, a keel stepped mast and a little more waterline. A Cherubini designed Hunter 33 is not much more boat than a 30, but it has all these things. Tankage is still minimal. Tee shaped cockpit with a narrow companionway. Sheet winches are close to hand. Very narrow compared to a modern 33, more like a 30 footer at 10' 2", which is 3" narrower than the 9.2A. Supposed to be a very good sailor and often found quite cheap. Two different port set ups, at one time I was looking for the 4 opening port per side and found a cheap boat with the two opening, two large port configuration for just about nothing. Looks, light and ventilation are the differences there, plus the large ports tend to leak more and may therefore have more wet core.
Just some thoughts. Do you plan to buy cheap and fix it up?
Bob