Tom, I understand you've found a place in town that uses/manufactures the closed-cell polystyrene (i.e. the holy grail of scenery-making). What is the place?
(Closed-cell polystyrene is the pale pink/blue/green stuff - not to be confused with merely compressed polystyrene, which is white like regular polystyrene)
Cheers,
Rob
--
Entropy isn't what it used to be.