08-29-2012, 10:28 AM
I'd still go with .060" sheet styrene - laminate sheets together if you require more thickness. For the decorative trim, Evergreen strips in appropriate sizes should do the trick. It's difficult to tell from the photo, but if there's fussier detail below that, you can mass-cut strip material into short bits using a NWSL "Chopper" and apply it piece-by-piece. The other option is to just skip the fussy bits - most viewers will be more taken by the size of the structure, and operators will be unlikely to look past the first storey after their initial viewing.
Wayne
Wayne