Well, since I do aircraft interiors for a living, and automotive upholstery on the side Ill post up some pictures and how to's on doing a headliner the "professional" way.
Here are some pictures from yesterday.
Pulled the headliner out, the only trim pieces that need to come off are the A-piller trim, and they really only need to be moved out of the way. After the sunv visors, HUD, and the 2 metal brackets in the headliner are removed the headliner will slid foward of the back to trim pieces, and you can pull it out of the either door.
Next I set everything on my table to be stripped. first removed all the trim so that the new material could be glued in place, and the trim installed back on.
The guy that tried doing this before loved duct tape and what looks to be like Seel tape. I will be removing this and gluing in and mesh if the headliner is crubled at all.
Thats all I have right now, the 220 to my garage has turned into 110, and I found it to be a break in the wire somewhere underground. GREAT! so I have no heat in the garage, I need heet to spray the glue (above 60 degree F)
The glue I spray is Weldwood Landau top adhesive.