Soulfather, yer a god
a suggestion... the interior... you deleted the 2 rows of arches on the side and replaced them with a low ceiling, I suppose the arches were stressing the engine too much... but now the ceiling is too *cough* flat, so to say. You should put some decoration between these pillars.
Did you keep the wooden stuff under the roof ?
I wish I had time to play with all that Source mapping stuff