I've been pondering my next project and came across this wondrous beast.
It fills all the criteria... different (very )...narrow gauge (very ) and
simple to build (Well it's only got one driven wheel and no frames.)
I thought the overhead guide rail could be brass and
fed with 240v mains, using a domestic water heater element ( a la Hornby. )
The steam output would be controlled by a track side dimmer switch.
This would eliminate all complicated gas firing system in one foul swoop.
( and if any fowl should swoop onto the line, eliminate them too.)
This would be no problem as it's fitted with a cow/bird/ careless visitor catcher.
The overhead support posts could be canted on curves to allow body lean and thus faster speeds
( I think HST engineers missed a trick here ! )
I'm sure PECO would be only too pleased to produce FlexiTrack for this forward looking
Now where are those tin snips ?