The units appear to be upgraded sd40's, not sd40-2's. So Lionel and Atlas both have that tooling. I'm not anywhere near as familiar with MTH to know if they also have tooling for an sd40.
I wish the Fort Worth & Western lettering on the blue band on the hood side was in yellow instead of red. The contrast is poor with the red on blue, and every time I see it I think it looks like a strikethrough line over the FWWR . Otherwise, I like the colors. A custom paint job, at least on an Atlas sd40 wouldn't be that difficult. All the color separations are either separate parts or nice straight edges for masking.
Jim