That's a fine looking specimen.In my experience with this same problem, I have found Mr. G's the most comprehensive source of molding clips. I even found the exact clip for my 1971 300s with the body side moldings in their inventory. I was amazed. They even provide the exact dimensions for their clips to speed determination whether they will work for you. Good luck.
Mr. G's Enterprises - Auto Fasteners
View attachment 260573
That looks fantastic. I hope my turns out as good when finished.In my experience with this same problem, I have found Mr. G's the most comprehensive source of molding clips. I even found the exact clip for my 1971 300s with the body side moldings in their inventory. I was amazed. They even provide the exact dimensions for their clips to speed determination whether they will work for you. Good luck.
Mr. G's Enterprises - Auto Fasteners
View attachment 260573