Is it LEGAL????

I might not wanna be here very much longer...
Not everyone here is a dick, most are good people who want to help out fellow enthusiasts. I cant speak to the legality of re-bodying a car or the ethics I can only raise a question. What percentage of a car can one replace before it is no longer the original car?

I had a 56 Ford Pickup. I built a new frame, new suspension, replaced the cab and all of the other sheet metal. Is it a re-body or a highly modified original vehicle?