In about 1966 I built my first "custom"
vehicle when I grafted a BSA Bantam engine into a Jawa frame. The engine for the Jawa needed parts that were as hard to get as they are now and the BSA engine worked but was without a frame. A cut, slice and some welds and I was riding. The joys of living in a small town, no Police and, as long as you didn't bother anyone, they let you be.