Old chrysler service manuals scanned and online

Been scanning old chrysler (dodge/valiant) service mechanics bulletins and putting them up on old-chrysler.com, need to turn this into a drupal site but still thinking abuot the best structure.
This information is categories as "antique" and is almost esoteric, you cant buy the manuals for love or money but a lot of people need this kind of information.
Need some kind of python script that knits together all the keywords, maybe something that can build an index automaticaly? Stay tuned! (pardon the pun)