That's the approach I took when the headliner in my Coupe started sagging a few years back. Auto upholstery shop I've used here on several needs took the headliner I removed from the coupe, matched the old headliner material practically "dead nuts", and even helped me re-install the headliner (when I had trouble getting the install by the rear hatch right). All for $132.50 USD. He even helped me take the A-pillar moldings off in the beginning because I was afraid to pull on them. I then went home & did the remainder of the headliner removal work. This guy makes sure there is ample material to wrap around the headliner board edges to ensure the headliner material does not come loose. So far, so good! I knew I didn't have the patience to recover the headliner board myself & do a 1st class job.