Hi, More advice needed please, I may have managed to find myself a good replacement headlining

it may need a small repair but is not glue stained that badly. Problem is, the old one I have removed became creased even with careful handling, how do I prevent or remove creases from the replacement headlining if the same happens to that?
This it turning into a right show stopper for my car, as headlining material of the correct spec is no longer available, is the only option to use a headlining from another car and can you get it looking good one fitted? as I don't want it to let the rest of the car down. I am very sad

as I only want the best for my car but don't know how to achieve it, pleas help
