Have now fabricated the parts to make a left gas tank that will fit a Worksman and is modeled after the 1912 Harley Tank- came across a book in the local library where one of the Davidson Boys described the process in detail. Next I will see how well I can braze- I have also convinced my wife that an English wheel and a reducing tool would come in handy in the shop. It occurs to me that the 'Fat Bob' tank design can be modified to fit a Huffy or Schwinn cruiser- these are 'straddle tanks' much like the 1912 in that there is a left and right tank. Run one tank dry, run the other home. Is there a legal limit as to how much fuel one of these bikes are allowed to carry? Here in Okanogan, nobody cares... but other areas might have other ideas. Also- considering the purchase of a straight-top Worksman, so I can try my hand at the 1911 tanks.