Thanks for youre reply Romit.
I was able to use Composer app of the JAMF Casper Suite to capture the settings while I set the Location etc and create a dmg file (65kb) that gets installed after lightroom gets installed
These were......
/Users/<logged in User>/Library/Application Support/Adobe/Lightroom
/Users/<logged in User>/Library/Preferences/com.adobe.lightroom5.plist
/Users/<logged in User>/Library/Preferences/com.adobe.lightroom5.LSSharedFileList.plist
...and the location of the default.lrcat file so that the user doesnt see/asked to choose where to set it up
Users/Shared/default
It worked for me, perhaps it can help others while we wait the new version of Lightroom.