Headliner question

67 notch back... The coat hooks are likely located right above where the side glasses meet.. If it was a 68 up the shoulder belt anchors would be in that location and the coat hooks would be moved back about 3 inches. If you think you would ever want 3 point belts in the front, install the roof anchors now. Relocate the coat hooks ( I deleted the coat hooks in mine ).
Know where the dome lamp screw holes and wiring is located. Wrong holes poked in the headliner from hunting those screw holes will always be there. Thing is... you can feel around and find the holes where the visors and mirror mount. The dome lamp screw holes aren't as easy to find. As for the mirror and visors , you will want to put the screws in the holes to help hold the liner at least while the glue dries but dont install those parts because they will only be in the way of installing the windshield.
Throw a couple of hubcaps over the rear seat to floor anchors. Old blankets folded in layers over the hubcaps. Those anchors will eat your knees.
There are 2 tension wires that hold the rear most bow in place so you can pull the head liner forward without moving that bow. Those 2 wires will poke holes threw the bow sleeve to capture the bow. I went to a lot of trouble measuring and placing those tension wires only to go back later and repostion them anyway.
You might go ahead and tow those wires inward a little so they will allow the liner to spead left and right since they wont rip the sleeve fabric.
The 68 window gaskets and reveal mouldings will show you things about your 67 that you've probably never noticed before but installing thos parts is a different topic so...
Hope this helps and good luck with it.