You can email Ford for the verification letter, as per this response:
Thank you for your e-mail to Ford Motor Company of Australia Limited (Ford Australia).
So that we can provide you with information on your Ford vehicle as it was originally manufactured, please provide us with proof of ownership that contains the vehicle identification number (VIN), and a copy of some personal identification with your current address (driver’s licence etc).
Our mailing address is Ford Australia, PMB 5, Campbellfield, Victoria, 3061, fax 03 8627 6130 or e-mail
customers@fordcrc.com.au.