I would be very interested in GTW and CN in the black and green scheme, and a more limited number in all green. I gave up waiting on a GTW RPO and painted and decalled my own. Similar cars have been out for a couple years in Z scale, so I am surprised that MT has taken this long.
CN and GTW also rebuilt some sleepers and parlors into coaches that maintained a heavyweight appearance- which would be easy to do, if you can live with being off a couple windows, by playing mix and match with the MT interiors.
Of course, CN was also renowned for rebuilding even very old heavyweights into a near streamlined appearance- has any company ever offered these in resin or as sides?
Tom D