Well the 'final' version has now arrived, and other than one area in which a grill hasnt etched properly (cant understand why as one slat at the bottom of one has been half etched rather than fully etched) That said I still am unsure if that grill really needs to be replaced as tbh I think the moulded one looks ok in comparason to the prototype (on which you cant see through.

What I intend to do is paint one up and see how it looks...

Everything else is perfect! Production will follow soon...

Edit: A little more work on the loco this evening. Everything is now painted (with the exception of the horn grills) and I am planning to assemble the first full loco tomorrow morning......