‘72 Demon cardboard headliner install

I bought one of the vinyl covered abs headliners from Classic.
I took the car apart 5 years ago, and don’t remember exactly how it goes back together.
Are there any special tricks or advice?
Is there a trim around the rear window?
I can’t find any if so.
Are there sail panels?
I have the metal parts painted and ready to go on.
Thank in advance everyone!!

Wally.