There were few technical differences between the late WW-2 M-26 and this one. The M-46 was basically a 1949 rebuild of the M-26 so these could be used as flatcar loads for any period 1944 to the early 6o’s. None of the other tanks are available yet, according to my search of the website.
I met the former surgeon general of the Army who had been an armor officer in Korea. He spoke very highly of these tanks and said they had no trouble dealing with the Russian T-34s which previously gave our Shermans a lot of trouble in Korea.