Didn't Bethesda outlaw redistribution of their manuals? At least that's what replacementdocs.com saith. I could've sworn the download of Arena off their site had the manual, but maybe I imagined it.
Redistribution of copyrighted material is illegal. That was why Beth asked them NOT to host them.
Arena was released as freeware recently, so, I don't quite understand why they wouldn't release the manual with it, unless someone else holds the copyright?? No clue there.
Beth won't re-release Daggerfall, as, even fully patched up it was chock full of fatal errors. My personal favorite was: "The game has encountered an error, you must reinstall to correct this." Such fun we have for you..... I had it running in compatibility mode on XP, without using DOSBox, but, it was still just as buggy, and crash prone as ever... Don't expect to see it released anytime soon.......