Truckmaster5150, you da man!!! I found a set of pictures I took of the truck back in 1990 when I bought it, and one of them showed those buttons in the rear headliner piece!
http://s242.photobucket.com/albums/ff77/stovebolt48/?action=view¤t=Notes020.jpg The pieces are even bowed like you said. I was going to straighten them.
AND, you even answered my next question before I asked it - whether I needed to put in those braces with the new headliner piece. I was a little worried about how to get everything lined up for cutting the holes, but now I don't have to worry about it. Thanks!
I can drink now, having been properly led and having had my head dunked in the water.
