Click to view attachmentThese are all very interesting questions of ethical and moral character of a used car salesman.
To get a true insight into the legal ramifications of said #swapping,look up the legal arguments in the case of the 250GTO guy in France/Switzerland.
He loved those cars and would buy a 330 or two and rebody the cars and sell them as replicas.The rebodies were executed by former panelbeaters of the anointed original maker and were,for a better word, "perfect'.The market for the cars was significant as you may know,and for good reason.Those were expensive cars and were,by no means shoddy or second rate.You could however take it for a spin on public roads without the risk of a 'significant' loss.
A team of lawyers descended on the guy and were about to send him to eternity but for a timely intervention.
Google to discover who intervened,like a whodunit,and why.