Have you looked at the Didi 26 (http://www.dixdesign.com/26didi.htm) - it's a couple of feet longer but other wise meets most of your criteria. At...
You stated that you don't 'like' unballasted swing keels which I interpreted as a bias against centreboards. I didn't mean it as a criticism, but...
I've sailed around 15k miles on a Ovni 43, from Antarctica to Alaska. Their AVS is low compared to more traditional designs but that doesn't...