it looks like you need to finish it...I would try painting it another color, and see if you can get a 1970 grille emblem. It is really hard to tell how it will look finnished without the car being painted. As of right now....I am not liking it.
That '05 grill on the '67 looks SWEET! I've considered that option, and now after seeing the photo I'm even more convinced!!!
As for the restomod grill - hard to tell 'til it's complete and painted - but keep up the effort. If I knew how to weld and fabricate I would do all sorts o' junk to my car (well, "tasteful" junk that is, if there is such a thing)!