If you're interested in collecting old guides to supplement your information, the Gentoo KDE3
configuration guide can be scrounged from the Wayback Machine:

http://web.archive.org/web/20060630093822/http://www.gentoo.org/doc/en/kde-config.xml

The license is Creative Commons Attribution/Share Alike. Much of the guide is taken up
with Gentoo-specific package manager commands, but there are a few bits and pieces
that may be good for something.