XR400 Starter kit - cheap version from S America
 

XR stuff in the UK have a kit to bring the bike up to the 2st century. The kit costs a fortune but I heard you can purchase it from south america somewhere for little over £150.

Can anyone help ?

no
but google for the nx400 falcon, they have electric starters
if i remember well

one of my bikes is a 400 , nx400 falcon, it is an electric start only........I sort of prefer a kick start though........i wonder if your wishes are really an improvement........
Ch