Took a look in person, though I was not present for it's operational
demonstration on the steam-up track at the convention. Interesting bird,
that one. It is, as advertised, a live steam version of Aristo's USRA
mikado. The plastic looks well insulated from the boiler, though I'm not
100% certain about the smokebox. Likely it is as well.
As Alice once said, "Curiouser and curiouser..."
Later,
K