skinnylinny wrote:What's the engine in the antepenultimate shot? Looks like a mishmash of various engine types, and I've never seen anything like it before. Kind of cute though, just what my model railway needs at the moment...

I think you meant 'prepenultimate' (second from last - 'antepenultimate' would mean it's the last shot)?. If it's the shot of the tank engine in the snow, this is a Fowler LMS 2F Dock Tank ('Beetlecrusher') - it looks a bit like a squashed Jinty

. Only 10 were built, they were designed for shunting on dockside lines which had sharp curves. The one in the shot is from the BATS LMS Tank Engines add-on - more pics on this thread
http://forums.uktrainsim.com/viewtopic. ... &start=111.
A freeware LMS liveried version is available:
 | |  | LMS Fowler 2F "Dock" Tank 7163 [6798541 bytes] - LMS_Fowler2F_7163.zip File ID: 13710 Date: 29 Dec 2005 - 1720 Downloads |
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Minitrix made an N gauge model in the 1970s/80s (a collector's model now). As few UK prototype models were available in the scale at the time, every layout had one!
K's made a whitemetal kit for 4mm/00 around the same time which is no longer made. Currently 'Mercian Models' produce a kit in several scales
http://www.modelrailways.tv/standard_gauge/mainline.htm - assembling that valve gear looks like quite a task though
cheers
Rob