What tank cars would be most appropriate for roads operating around Chicago...


In the 1930's and from 1940 till 1955. I am specifically looking at the Proto 2k series of cars and the Intermountain cars .
Also to be more detailed about my question the rail roads i'm depicting are the CNW,CB&Q,MILW .
I'm wanting to know the specific road /owner names and paint schemes that are available in both of the above mentioned manufacturers that would be appropriate for my needs.
Any help would be appreciated
Doug Kinder

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