accept the car for what it is
a car missing its tag,
anything else comes off as appearing as fraud.

i happen to own a rare car missing its tag also
it is probably in some tag collectors shoe box
or nailed up on a garage wall..

it doesn't matter to me enough to try to
rewrite history and try to create something
from what i think it should be.
i'm just going to use a tag from another similar year car
a tag is just another part to me..