VY Commodore Headliner removal and replacement of fabric

It is not possible to re-glue the old headliner to the liner substrate. Replacement of the fabric is the only option. The fabric is easily available online.
Do not use standard contact glue as it may not stick well enough in the heat. I used two cans. There are plenty of other tutorials about it re-gluing the headliner, I was focusing on the removal of the headliner in this particular car.