I don't really need ruins, but do up a couple of intact facades like this and I'm interested!
A lot of Art Deco buildings (heck, a lot of buildings generally) have severely plain back and side walls; how about doing up an intact two story ornate front with minimally detailed front & side walls as a card kit?
To echo CommissarMoody, that is a great idea. I have actually completed the templates for the full building but it is quite large and would be extremely pricey to make (probably around $200).
A lot of that price though is based on all four walls having equal detailing.
What I did with the art deco skyscraper I made (there is a pic attached) is that I did two walls complete with detailing and then made the other two ruined so that you could get your hands inside to move things around.
But this is a requirement of 40k where movement within buildings is needed. Do a lot of the games you play not need the models to move inside?