I just put in a headlkiner in my later 49 1 ton about an hour ago. You have the later style from the sounds of it. I have two early and two late 49's. The Earlies have the screw in headliner bow. The lates have a screw in headliner bow. I have heard of the floating but neither of my types have them. My late 49's have the box track spot welded in around the door openings with open spots just below the large curves from the vertical runs to the horizontal across the top of the door.
Yours sounds like my later 49's.
Just my $.02
