Not difficult to do yourself, just a little messy...
http://www.banzairunnerpantera.com/techinfo_headliner.htm
http://www.panteraplace.com/page120.htm
http://lebeter.wordpress.com/2010/09/23/hello-world/
http://lebeter.wordpress.com/2010/10/04/installed-new-headliner-in-pantera/