Metal siding...a new,inexpensive way

[train_guy]

I came across this product on Ebay <!-- m --><a class="postlink" href="http://cgi.ebay.com/Scale-Metal-Siding-Making-Die-5-WIDE-NEW-/120547229244?pt=Model_RR_Trains&hash=item1c112cbe3c">http://cgi.ebay.com/Scale-Metal-Siding- ... 1c112cbe3c</a><!-- m --> Basically it a plastic formed die that can be used to form a "metal siding" imprint in aluminum foil,which in turn can be used to apply a metal siding covering on carboard stock.Since all of my future buildings will be modern buildings with this type of exterior cladding,I think this would be a very inexpensive way to create modern buildings(warehouses,stamping plants,etc)with aluminum foil and carboard stock.How much money would it cost to buy Evergreen or Plastruct plastic sheets to build one building?

I've actually seen heavy guage aluminum foil in the supermarket that would be perfect(it is avaliable in more than one thickness).