The headliner for your 53 will be a two piece...your center bar is a floater and there is a curved metal strip w/screws that secures the back of the liner to the rear cab ceiling. The front tucks under the windshield rubber.
The major suppliers all carry the original (sorta like stock) liners for about $25.00. However, be advised that they are very light cardboard. The one piece is plastic and well over $100.00 and requires fitting.
To get further info, post a question in the "interiors" forum and you'll get plenty of help. Hope this helps.
