Source for plastic molding clips for '64 Valiant Signet?

I need the 12 plastic rear window trim molding clips. The ones that go in the chrome trim that goes around the back window on a 1964 Valiant Signet.

I need to know if anyone has ever found any for sale, or if they have found a universal one that works.

I did a search and found an old thread that asked the same, but it was never resolved (in the thread anyway).

And yes...I've tried all the main sites that sell that type of stuff, and I couldn't find a listing for them, or for anything listed as working for that application.

I need to know if anyone found anything that actually held the trim on snug if the OEM stuff isn't available.

I've heard Au-ve-co Products might be my best bet, but their website is close to useless, and you need a commercial account to log in and see anything specific...their pdf won't download....

Thanks for any help....