Door VIN Question

I'm painting my 74 Dart Sport. It has the original VIN tag on the dash. I'm putting 72 Duster doors on it, and I'm ready to prep the jambs.
Should I remove the VIN on the 72 door, as to avoid future confusion?
As if a '72 Duster door on a '74 Dart Sport wouldn't confuse someone anyway............
As you know, they have a totally different style and function on the inside anyway, i vote to take it off, but the V.I.N. on the dash is a totally different story.
Leave it alone or you are tampering with the V.I.N. of the car, and that is a federal offense..........