Mainline Modeler magazine published plans for the N&W cars.
I have never found comparable drawings for the rebuilt heavweights that consisted the Cincinnatian.
A 5-car set of either consist is quoted at $1249.95. As much as I'd like to have both sets, $2500 plus CA tax at about the same time is just too rich for my blood.
Given the 400 (as I recall) Weaver P-7d's out there and the near-infinite number of N&W class J's I would think there is a good chance of sufficient number of sets being ordered. But-here's the tricky part-you all have to reserve them, ASAP. Please. I've done my bit for the B&O cars