Why doesn't someone just set up a production line for Spitfires, and then every time one is dug out of the ground, its data plate can be screwed in to make one of them genuine? (supposing that any variant can be configured from a basic airframe).
Someone actually was in the process of doing that before his untimley death, Charles Church the housebuilder, indeed one was produced which followed on the serial num,bers from the last production ones.
https://www.heraldscotland.com/news/...tfire-crashes/