This would be an interesting breeding project. Perhaps you could start with some nice large Black Orpingtons, and cross them with some Dominique roosters, then focus only the barred offspring (particularily on the males if you breed back).
That would give you the large body of the Orps, soften the barring (I've read before that European barred orps have softer bars), and I believe you'd end up with the Dominique comb as dominant.
You'd have to do some gene scrubbing for a few generations, but it's an idea worth kicking around on paper.