With regards to the copy protection, you should find a file included in the installation which will give you the words you need to start the game (look for PASSWRDS.TXT). So, you needn't bother scouring the net for the original manual in its entirety.
However, I would personally suggest going here:
http://retro.icequake.net/dob/
...and nabbing Rawcopy. That'll remove this antiquated piece of copy protection so that you won't have to look up a word every time you start the game. It took me 2 years to finish Crusaders of the Dark Savant. That's one year per floppy! ...and now I'm playing around with Bane of the Cosmic Forge (thanks for the link, man!)