Every 67 B'cuda notch I have had did have "snake bite" perforated head liner material.
Those 2 little hard wires that tether the rear bow are must have since the head liner is stretched forward for install. Only other item I can think of is the odd, almost diamond, shaped sail panel boards.
Put the screws for sun visors, dome lamp, etc., in their holes so you can locate after head liner is up. And of course the wiring for dome lamp needs to be in place.