Yep, these will be on #414 with some other surprises when I get it restored.
I found 'em cruising down a barren country road one day a few years ago and saw a car sitting at a used-to-be gas station/service garage. The place was still open for inspections and what not, so I stopped and it turned out that the guy working in the garage was driving the Shadow that had these on it. I asked him if he'd sell them, he said sure, took out a plastic butter knife to remove the brackets for me and they were mine. Luck was with me that day!
Here's another pic. from when I sat them up on a parts car I brought home:
Good luck.