For plant layout purposes only:
Does anyone know of a source or possess 2D elevation and plan views (3D models are fine, too) of modern, USA-type freight train assets (hopper, tank, boxcars and/or diesel locos and track sections/views).
I did several web searches with no luck (including one innocent-looking but sordid link that sent me to a less than moral website!)
I look forward to your input!