That "DODGE" emblem on the trunk was a stick on emblem. It is how ever the same size and shape as the 71 "DODGE" grille emblem. You would have to remove the 3 posts from the back, but I think it would work fine. I got lucky and got an original "stick on" off ebay for my car, I don't have another stick on but I am going to use a grille emblem (with the posts cut off) for the trunk lid on my trailer.
I don't think that emblem is being repoped yet. I would just look for a nice one from a 71 grille and cut off the posts.
Dave