These ebuilds come from http://kde.gentoo.org.
If you have some problems, go to the official site first.
bluedevil : Bluetooth stack for KDE ( http://projects.kde.org/projects/extragear/base/bluedevil )
Add an ebuild in portage :
The ebuild is now in the portage tree.
You can also use layman : emerge layman then layman -a kde
For Paludis use this rsync : rsync://gentoo.zugaina.org/kde-portage
If you have a problem : ycarus(-at-)zugaina.org