I just picked up a 1966 650SS. The bike is missing most of the sheet metal, except oil tank and battery box. Is the gas tank the same as Atlas? A friend has an Atkas tank I can get, but was wondering if it is the same. The bike was taken to a scrap yard to be scrapped and luckily it was saved by an employee there. It's a rolling bike, engine has good compression and it's numbers matching.