Interesting VIN number on 68 Barracuda

At what point is the car still the same car as relation to the VIN? Say it wasn't just the dash that was swapped but the front end was drilled and the whole subframe swapped. Along with the doors, fenders, motor, transmission, interior, axle, K frame, 1/4 panels, etc. What VIN belongs with the restored car, the 90% that was swapped or the 10% that remained. Seems to me, if they are serious about prosecuting somebody that "modified" a VIN by simply unbolting a bolted on piece, they are going to have a tough sell to a jury especially if just fixing up an old car was the motive. The VINs need to be attached or stamped on a permanent part of the car. Swapping a whole dash assembly that obviously could never have been in the car with no effort to conceal it shows to me there was nothing nefarious here. It's the cars with the perfect little cutout sequence numbers and the neatly drilled out VIN tags that raise huge red flags. Somebody is putting great efforts into concealing something. It is either stolen or being represented as a rare high dollar piece.