Check ebay, just search glass filter pipes and there are imitation ADAs for like $40 shipped. Just order now since they will most likely be coming from Asia. Also make sure the size will be god for your tank. I would order a smaller sized one. I will PM you one that would work great.
On here people like to use huge canisters for nanos. Not sure if it is for flow or that it adds more volume to the tank. I would say a classic would be best since they last forever. The 2215 would be good since people use the 2213 for like 5 gallons.
He probably thinks you stole it....