I dont know the answer to your question exactly but there are sites that sell after market tanks.What style of tank are you looking for?Any tank can be fabricated to work IF you have all the right tools.Im not sure if this is something you would consider or not but I have seen it done before.Also alot of the same year different model Jap bike gas tanks are fasten on to the frame using the same mounting method as our xs tanks.Suzukis,Kawasaki are very similair.