That is awesome for the basic shape, if i had any idea how to use Blender and had the time myself I would totally do it. Also just realised I have the no.05 Shannon that you made on all my current games .
But yea I really like the rail motor as I am quite the fan of most multiple unit trains perhaps the class 156 being one of my favourites ouo. wish we could get the train set down from the attic
Anyhow maybe one day I will get into 3D modelling.