After reading this thread it occurs to me the solution has been offered already. Ask the inspector to check what material the tag is made of. If he says aluminum then ask him how to weld aluminum to steel. If he has no answer you should be home free. I am doing a 31 roadster and will have to do the title dance with these folks as well. Not something I am looking forward to but I used reproduction frame rails which have no numbers. I am not worried about a state assigned vin decreasing the value however as it just proves ownership in the eyes of the state. A good thing when and if it comes time to sell plus I just want to be able to drive and enjoy the car.