I rode for 20 years, stopped for 18 then a friend gave me a CX650 Custom. I don´t especially like cruisers, but the bike was free. I love to wrench and I am familiar with these engines, so realible. BUT, there´s always a but isn´t there, at 3.2 gallons the gas tank is WAY too small. I´m a teacher and planning to do a one lap of America next summer. Will the tank off an E or Silverwing go on a Custom, and if so does anyone have one?