The floors of the buildings are 4mm foamcore, with photocopies of the original board glued on it (spray glue only).
Um, to be clearer: it's the board tiles which are 4mm foamcore; the walls are glued on them, the buildings have no independant floors.
How do you handle the different door positions in different missions?
Doors have been made separately, with their own base, so they can be displayed closed (1st picture), or open in any position (2nd picture),
sorry my camera was not steady enough:

(but when they are open the players find more convenient to remove them from the board than to keep them in some open position).More pictures soon from the game at "Terminus Ludi" convention last Saturday.