fastback headliner help

i have a 68 FB cuda that i put a new headliner in. when i bought the car, the liner was already gone. question is, what do you do with the end of the liner, front and rear? does it go under the glass gasket? i dont see any holes for any kind of trim.

i've done a bunch of charger liners, and they have a plastic trim that goes over the spikes. what covers up the spikes on these fastbacks? after the spikes, what do you do with the extra liner? i'm having front and rear glass put in on monday, need to know what to do to be ready. anybody have a pic of the front and rear, where the headliner ends? thanks