Manual Electric Start Standby Diesel Generator

I HAVE A NEILSEN CT 0012 BDE6700T3 THREE PHASE DIESEL GENERATOR,WHICH IS A MANUAL ELECTRIC START.I WANT TO USE THE GENERATOR WITH AUTOMATIC TRANSFER SWITCH (ATS). I HAVE BEEN TOLD THAT IN ORDER TO DO THAT IT HAS TO BE CONVERTED FROM MANUAL ELECTRIC START TO AUTO ELECTRIC START,AND THIS IS ALL TO DO WITH THE GENERATOR IGNITION KEY.APPARENTLY THE KEY SWITCH HAS THREE WIRES, BATTERY POSITIVE WIRE, FUEL WIRE, AND STARTER WIRE AND THESE WIRES HAVE TO BE RECONNECTED TO THE CONTROL MODULE. I NEED TO KNOW HOW THIS IS DONE TECHNICALLY. I LIVE IN LONDON AND THIS GENERATOR IS GOING TO BE USED IN MY HOLIDAY HOME IN GHANA WHERE THE UTILITY SUPPLY IS DISRUPTIVE MOST OF THE TIME.