Tractor Lady

I need some help...a friend has for sale a mustang toy that was sent to him when he orderred his new 1965 Mustang, he has the toy, and has misplaced the letter which he got from Ford, and the name tag that was imprinted for him. His name was engraved on this plate, which was to be installed on the dash. Can you tell me where I can find out what this car is worth. I would like to find a value. Thanks so much