Sunvisors and headliner: 1960 Valiant 200

After getting it passing inspection, next area of attack is a complete restore of the interior. I'm keeping the bench seats. It has original (I think) seat belts in the front. The fabric is quite stiff on those, but looks serviceable. I would assume they were an option as seatbelt laws did not go into effect until 1968?
On my 63 Dart 170, the sun visors are just fiberboard/cardboard the same color as the headliner. Not padded in any way. I would think (dangerous, I know) the ones in the earlier models would be the same.