www.classicbuicks.com now carries replacement lenses for our big Buick convertibles! Here is the direct link to the page. http://www.classicbuicks.com/lampint.htm
Those seems to be the hardest parts to find, except for optional stuff. I think I'm in for a order, even tough I know that as soon as I get them, there'll be a five finger discount set at the "you pull parts".