I just took our office 2010 package and replaced the contents with 2013.
Have you looked at this yet? http://community.landesk.com/support/thread/11924
One thing I would like to mention, if you use OCS/Lync. The Lync client is now included in the Office Suite but does NOT automatically uninstall the previous standalone lync client. So be sure to manually remove Lync as part of your install.