This guide is being created to give guidance on ways in which you could implement Kali Pen-Testing distrubution within Qubes-OS.
There are multiple ways in which this can be achieved, for example you could create a HVM and use the ISO to install the system straight to that virtual machine.
8 - sudo apt-get apt-get install kali-*** (or similar) --> installs fine but break the template X settings. As mentioned, X packaged need to be masked prior to this, I did not take the time to look-up how to do that...
If you do not want to modify the sources.list file and add the signing keys yourself, alternatively you can use KATOOLIN after cloning the Debian Template. Guide on how to use KATOOLIN - http://www.tecmint.com/install-kali-linux-tools-using-katoolin-on-ubuntu-debian/