I used to be Vice President of finance in a company some number of years ago. We were a supplier to GM, among others. To meet some of their requirements, we needed to implement periodic sales meetings. The VP of Sales didn't really have it together, so I started it for him, and I called it the Sales Presentation Action Meeting ... SPAM. That's the honest truth.
cancer, i've tried to find info on the headliner material as well. your best bet is to take the stock A-pillar into a fabric/remnant store and look around.. there is no specific material source i have asked around