Actually there are a number of C Dorys all through the Eastern part of the country. Not as many as Washington State however. There were dealers in New Hampshire, Baltimore, Carolinas, and Florida at one point,
The usual version of the R 246 does have a dinette. The Halifax and Digby have settees with a removable table. The R 245 is a "Down East" semi displacement hull. They do slightly better going into the chop and not as well going down seas, swells. (More likely to broach). Many are run at semi displacement speeds--6 to 8 knots. There is an older low side version and a newer high side version.
One of the models does have an enclosed head, similar to c Dory 25. That means a small galley. One dealer I know stopped carrying the new R 246 because of quality controls in boats several years ago. That may have improved recently. There is a R-246 forum, and they do have organized gatherings.
We had considered one at several times in our lives. The bunk is too short for me, (Unless you remove the hanging locker forward). Also I am not a fan of the side, sliding doors by the helm and navigator seats. However they are good boats and many folks love them.
Also mentioned is the Atlas Boatworks Acadia 25.
There is nothing like a C Dory for a trailerable planing power boat.