I also have several tech/info pages there covering RPO/Spid numbers, GM part numbers (for 77-85's) with pictures (downloadable), a parts and information page with 100's of useful links, and a complete copy of a 1979 Fisher Body Service Manual in PDF format (also downloadable, so grab yourself a free copy).
Wow, that is a clean car and lots of cool/rare documentation. Carfully preserve all of that. As your year of car moves into the years of interest for collectors, it will make it worth a lot more. And besides that, it is just plain fun to have stuff like that.