Nice list!
It has been about 25 years ago, but I knew of one of the 67 Hemi R/T Convertibles, setting in a back yard, out in Ulysses, KS. I got to be pretty good friends with the old Dodge dealer there, and he had it. Wouldn't turn loose of it though, but he did show me a picture.
I had always heard that the 68 383 4 speed Dart Convertibles, were extremely low production. In fact, an owner of one I knew in Kansas, told me his was one of 4.
I found it kind of fun when I told him, that one of my Navy buddies in Norfolk, Va in 1971 had a red one, with black guts, and I rode in it a few times.