I don't believe for a second that sheetmetal was replaced on the first car, I think it's a complete re-body (which I understand to mean transferring the VIN from one car to another). To me, replacing 100% of the sheetmetal on the car DOES NOT make it a re-body, it makes it a restored car. I don't really care, either, except that these cars tend to take up space in the Mopar magazines, space that I would rather see devoted to a non-forgery car. Or, at the very least, as a regular story about a regular car, and not the sensationalized "12TH HEMICUDA VERT" type headline. These cars range from being tribute or clone cars to outright forgeries (read illegal) and shouldn't be given the attention that they get.
But to answer your question, I really don't care how much metal is replaced, as long as it's the original car. Switching VINs I where I lose interest in the car, because the sole intent in switching VINs is to make people believe the car something it is not, which does not appeal to me. An to those who say that that's not the intent in switching VINs, I ask, then what is the intent?
Mike