Re: Good Blue Water / Shallow Water Compromise
In general full keel designs have shallower draft than fin keel designs so that might be a criteria to help you narrow down your search.
Cape Dory produced a large number of full keel boats over many years before going out of business in the late 80's early 90's. They made a 30, 31 32, 33, 36 40 and 45 (not in your criteria range). They were well made and have an active owners association. The Cape Dory 36 is reincarnate in the Robinhood 36 made by a company owned by the founder of Cape Dory.
Carl Alberg was the designer of most of the Cape Dory full keel designs. He also designed some of the early Pearsons and (I believe) some of the Sea Sprites.
I own a Cape Dory but it is the 30' motor sailor which is not a blue water boat and not designed by Carl Alberg. She is well made however and still going stron after 27 years. (Didn't want James to jump on me for being biased)