Met this fellow with the American Truck Historical Society at MATS this year and he sent me images of his 51 F7/Chevron rollback. His Dad bought the 51 new and he saved it, upgrading it to more modern standards to run the current roads. It came out nice. Chevron built these bodies especially for him. They used older plans including an old type headboard and used my NOS old style body lights to look more period correct. Thanks for your interest.
Some here may know John Vannatta with the American Truck Historical Society
I will be posting a similar one he sold in the vintage forum.