Scaledecks has actually had this for awhile. I have their decks for the USS Constitution and the Le Soleil Royal. Both are outstanding! They fit snugly where they are supposed to do so, and the planks actually look in scale, even for the 1/196 Constitution. They look great!
They do provide an interesting feature for the Constitution. As most of you know, the kit has molded-on slides for the carronades. Scaledecks provides two decks for this kit; one to fit around the slides, and one without the cutouts for those of us who prefer to trim off the slides and mount our own.
These decks are the best I have seen. I highly recommend them!
Bill