SPSF posted:They're all postwar clones. The MTH version from 2011 https://www.mthtrains.com/20-20125-2 was improved, steps were different.
Either go with that one or the K-line version which was the most accurate.
MTH Premier from 2011 onward was totally new tooling, not a postwar clone. Noticeably different in numerous ways, with road specific details. Railking remains a postwar clone.
Get a newer Premier, much better looking model than any other Train Master on market.