I have the same problem with my 68 after I replaced the pass side inner fender. It's not as big a problem with a 68 though as it has a dash tag too but it's something I'm going to fix next time the pass side fender is off as I didn't have stamps when I replaced the panel.
I bought 3/16" numeral and letter stamps plus a star from MSC ( MSC Industrial Supply Co. Home Page ) even though I hold a personal account with them they do sell to average people, unlike Grainger. The star isn't an exact copy of the one Ford used but unless two cars were side by side I doubt most people would realize it.
You'd have to support the inner fender lip from underneath while stamping it so you don't bow it down.
I bought 3/16" numeral and letter stamps plus a star from MSC ( MSC Industrial Supply Co. Home Page ) even though I hold a personal account with them they do sell to average people, unlike Grainger. The star isn't an exact copy of the one Ford used but unless two cars were side by side I doubt most people would realize it.
You'd have to support the inner fender lip from underneath while stamping it so you don't bow it down.