Thanks for posting that up John! It really does look like a 800 on a more moderate scale.
A model would indeed be very interesting. Maybe one of the Brassmaster of the site would build one for posterity:p
Hmm..interesting...
But there would(obviously) be a much larger appeal to an RTR run. Chances are MM won't consider an A for at least a couple of years so a kit might work
Although to me, they looked like a bunch of belpaires put together, they were extremely powerful and reliable and they were built on the "austerity" period so it was "form follows function"
That is what Watson based the 400 class on, obviously, as you said major modifications would have to be made ( walshearts valve gear, split footplate etc..) times like these a Mr. C Flanagan would be very helpful...