Daryl,
I have a 29 phaeton that didn't have any seatback clips when I bought it. I spent a lot of time researching them. I found some on eBay and with the help of some Fordbarners, I figured out the rest that I needed. I made most of them. Only one of them, the top center of the rear seatback was a little harder to make. Anyway, I have a picture or two of the set of clips. I might also have a few extra clips. I made a set for two Fordbarners that were in the same situation as you are. If you send me a PM with you email address, I can send you the pictures and we can discuss them.
Rusty Nelson