Ok...I asked my buddy about making a few more tanks during his breaks at work and he said he probably could, but they wouldn't be cheap. Probably somewhere between $100 - $200 to make it worth his while since the materials are expensive and his time is valuable. I suppose it depends upon the size of tank and shape your bike requires. I had to make him a cardboard template of what my bike required and also provide him with other measurements. So if that don't scare you off and you really really want a custom made stainless steel fuel tank...you can email me at email@example.com
and I will give you his email address and you can contact him directly. He is a real nice and honest guy who is particular and really likes to do nice work and if you seal a deal and make arrangements for him to build you one....he will treat you right.