You might like to look at this post http://talk.maemo.org/showpost.php?p...&postcount=323 as managed to install Coderus Unrestricted UI on another N9 set up with similar pre-requisites and Coderus aegis-install hack, simply by enabling Coderus Trusted Harmattan Repository and running QTweak 3 -1-1.

I had made the wrong assumption previously that other users would have tried this first! Until I get feedback that this works for others, I shall leave process for manual installation.