On the topic of Fender Tags- what if you don't have it?

That is a violation of Federal law, and a shoddy business practice. Just my 2 cents. I reread your post. If you didn't change any of the data, you are not in violation. Selling fender tags, and especially VIN dash numbers is a violation. I apoligize for my inattention. "AlaskanTA" can give you all pertinent advice.
Shoddy business practice yes but it’s not illegal to reproduce fender tags since they are actually trim tags and not VIN tags. They wouldn’t be just screwed on if they were for identification.