Hi Ray.
That is indeed the locomotive I'm referring to. I wasn't aware that it was Milner design, so thanks for that, I will add that to my searches like you suggested. I have seen the ones that station road had for sale, and they were very impressive.
Ideally I'd like to visit a track where this engine is frequently run so I could have a good inspection of it and a talk with the owner etc.
Thanks for your reply Ray 