Ok so I tested it.
I followed Rehabman's installation guide to install Clover to an USB and use "createinstallmedia" to put the Yosemite files on it.
Use the following config.plist:
https://github.com/robvanoostenrijk/XPS9530-OSX/blob/master/installation/config.plist
Now boot from the USB (F12 during startup) and select to boot the installation volume in verbose mode.
The bootup will take a while (2-5 minutes), so just keep an eye on the verbose log.
At some point the OS X loading bar will show up on top of the verbose text, after which the installer will show.
Follow the installation process as normal and install to a harddisk (either internal or external).
After installation finishes, again reboot with the USB stick, but this time select the newly installed OS X Yosemite partition.
The OS will boot up and prompt for user creation etc.
Note that you cannot select another user icon as they do not show without QE/CI, you can do this later once everything is configured.