Here is a link to the page where to get supplies. The dollar amounts are USD, of course. You'll need aluminum tape, wire, connectors and the heat tape. You will also need to hook it all up to a rheostat so it doesn't overheat.
Heating Supplies from the Bean Farm
Once we get the room organized again I can get a pic of it. We had our floor dug up a while ago to fix a busted hot water pipe, so there is stuff piled in front of the case (jackhammers when you are having a migraine is NOT fun!!).