You can try to follow my post on Tryton 4.8 install on RedHat 7 - Some icons are not rendered on web interface - #8 by edbo. It is for CentOS, but I think you can adapt the things to your needs.
What you do, is download a precompiled version of sao and use a script to get the different needed javascript files. As the script is a bit old, you can try new versions of the different files downloaded.