That second truck looks more like it. from the looks of it, an Andrews truck wouldn't be hard to replicate. I, for one, find the detail adequate.
Here's a photo from March, 1943 showing the Andrews version in good detail. For anyone interested, this is from the Library of Congress FSA/OWI collection. It was taken by Jack Delano on a cross country trip where he rode Santa Fe freight trains and made photos of railroad subjects as he went.