I guess, the general layout of the cab? – As I understand it, these locomotives where popular for routes including long tunnels, where the crew would have suff

I guess, the general layout of the cab? – As I understand it, these locomotives where popular for routes including long tunnels, where the crew would have suffered seriously from the exhaust. If you intend to run the locomotive generally cab-forward, you'd probably adapt the layout and also add a proper wind screen.