Best thing I can suggest to you is this. Backup your Config file Titled something to the effect of this
toxxulia_somelongname_eq2_uisettings
(The name will be yourserver_yourcharactername)
That way if you do try the custom UI's and decide you do not like them, you can go back to the exact way you are playing right now with no interuptions
Hope this helps ease your mind about the transition.
