Brandon, Doesn't sound like the deal of the century but not bad considering the apparent work that's been done.
The replaced bulkheads would raise a small flag for me...I'd have a surveyor look at them for proper installation and to see if the cause (possible water intrusion) was addressed. Also I've read that Catalina used some wood in the keel to hull joint in the earlier models to the mid / late 80's models of the 25' fin keeled versions. That would be another area I'd want confirmed by a knowledgeable surveyor. The fin keel does give you another 7 - 8" of headroom over the swing-keel model. A plus.
Just looking at a coastal map of Texas, the C25 would be more than suitable for long weekend/week cruises in the hunreds of miles of intracoastal waterways. The C25 would be fine for short trips into the Gulf if one stays within 'ducking in' distance to protected waters. A close eye on the weather forecast...
IMHO, with reasonable headroom, enclosed head, small galley w/ice box and two fair sized sleeping areas, the C25 would make a good little Texas coastal cruiser, especially if you're young and flexable. Good luck with the survey and possible purchase.