These ebuilds come from http://overlays.gentoo.org/proj/emacs/.
If you have some problems, go to the official site first.
casting-spels-emacs : Casting SPELs in Lisp -- A Comic Book (Emacs Lisp Edition) ( http://code.google.com/p/casting-spels-emacs/ )
Add an ebuild in portage :
The ebuild is now in the portage tree.
You can also use layman : emerge layman then layman -a zugaina
For Paludis use this rsync : rsync://gentoo.zugaina.org/zugaina-portage
If you have a problem : ycarus(-at-)zugaina.org