So....What is YOUR opinion on VIN swaps ?

Not what effing the hell outta the subject, its a valid question. The only difference is its an aftermarket manufactured body shell with a certificate of origin VS a used body shell.

Ditto with a motorcycle. You take a wrecked harley davidson with a good title and use its engine which has a vin that matches the title and put it into an aftermarket frame made by any number of frame manufacturers, is that deceitful? I dunno, but plenty of people do it all the time, all it takes is a DMV safety check to get it registered when built.

When we replaced frames at the dealership, we had to remove a VERY distinct portion of the frame and return to HD for verified destruction.

Otherwise someone would buy an aftermarket frame (which can be had minus steering head)and reuse the VIN.

Most customs are built from state assigned VIN Numbers. The motor on the number doesn't mean much, although it used to be used by some makes add a vin back in the day.