Hi Guys from an OAP biker Because of a NewKnee I have to stop Kick Starting so I am giving my Btit Bikes to my 2 Sons I would like to convert my 1963 Triumph T21 350 from 6v to 12v . It has a distributer. I have some 12v Coils, Bulbs and A 12v Battery. What else do I need to change.