Welcome!
Your plan is sound. You don't need anything large for the waters you're talking about.
What you'll want is something comfortable. What that means is up to you. My preference is lots of "indoor" space. More often than not, it's too hot, too sunny, to cold or too buggy outdoors. I'm a lousy fisherman, so a big cockpit is of no value to me.
YMMV.
If I were looking at anything in the 30' and under range, I'd be after an express cruiser. Something that can get up on a plane when needed, or be run at a slow, economical "trawler" speed when wanted. There are some really nice "pocket trawlers" out there, but I wouldn't give up on other designs just to get in the "trawler" club.