I to have the sun shade lining problem. I read somewhere that it is possible to remove the shade without taking down the headlining. You 1st need to remove the glass then thieve spring clips. It is almost certain that vat least one of the clips will break, so advisable to have some replacements to hand. You will also need to remove one arm that holds the glass, dosent matter which side. Then it is allegedly possible to remove the shade upwards through the hole in the roof.
I have not been brave enough to attempt as yet!