headliner repair
I found a website that has the board and your choice of cloth already applied for $169 plus $50 shipping-   oldbuickparts.com.  Find the menu on the site for Regal/T-type parts, group 10 listings.  By the way, I am having trouble removing my own headliner because I can't seem to release the metal trim piece across the front (solid roof car).  The clips holding the trim piece on are difficult to work with.  I hope this helps in time.