My wheel type command interface pyRad just got included in the official Gentoo portage-tree!
So now you can install it in Gentoo with a simple emerge kde-misc/pyrad.
Many thanks go to the maintainer Andreas K. Hüttel (dilfridge) and to jokey and Tommy[D] from the Gentoo sunrise project (wiki) for providing their user-overlay and helping users with creating ebuilds as well as Arfrever, neurogeek, floppym from the Gentoo Python-Herd for helping me to clean up the ebuild and convert it to EAPI 3!