Beth,
I don’t know how you can say that CNJ has been overdone, it is one of the most underrepresented RRs in 3 rail by the big three. No Wooten fireboxes on anything other than a camelback and that’s only a 4-6-0. How about a heavy mikado, light pacifics, all the steam switchers. Never been a dual cab or babyface baldwin. How about freight cars, other than hoppers, in colors other than “coastguard red”?