Correct you can get the heritage emblems now but there's a difference between the 1966 style and the 2023 heritage style. The new ones are plastic chrome and smaller.
I bought them from dennis-carpenter.com. They were a rivet install but I did not want to drill a hole so I cut the posts off and then filled the back in with epoxy. Once it dried I sanded it flat and cut out a flat sheet of 3M automotive tape to match the emblem.