From what I hear, there is someone making the dash VIN plates. There's apparently some debate on the legality of doing such. Of course, unless your car is inspected by a local official with an extraordinary knowledge of VIN plates, you can probably replicate a VIN dash plate and get away with it. Now, if you put that new dash in with that VIN plate AND try to register it under that new VIN....I'll bake a cake with a file in it for you!
No matter what anyone says, the legally correct thing to do is to consult your local DMV about what is required to title and register the car. IF you are missing the dash VIN tag AND the local DMV physically inspects your car for some reason, THEN you will most likely be required to provide certain documents to prove that the car is what you say it is and that it isn't stolen. They will then Probably assign you a new VIN and permanently attach the new VIN tag to your car (in a non-factory location).
But, just go down to the DMV and find out for sure.
