69 dart headliner question

I have a 69 dart and I need to re do the headliner but I have no idea what it had and what it needs.

There is cardboard up there right now and it seems as if that looks like it was. however when I pull back the cardboard I see the vinyl behind it. I dont have any of the headliner bows. I prefer the vinyl look.

If I use the headliner with the bows do I need the cardboard? How was it originally? Through my research it seems it was one or the other? What goes behind/under the vinyl if I use the vinyl with the bows?

thanks for the help I am sure someone will know what is supposed to be there

justin