I'm looking for headlight clips to hold the rubber gasket on. Where can I buy them? The dealer said they don't have a listing. Is my only option a junkyard our two?

Try to make your own. I did mine.
I got a strong wire I cut it in small pieces, I bend so it can fit loose.
Then I used a pliers at so I could bend it to hold the rubber perfect, but be careful not to brake the headlight plastic.
That worked great for me till now with no issues.

you could use RTV 5o hold it in place