Yeah, I agree that the ray is a DEFINITE no go.
As well, make sure you introduce the least aggressive angels to the most aggressive.
If your tank is cycled really well, you may want to add them all in at once (ideally) but you risk shocking the system.
Alternatively, just add 2 at a time.. like for instance add a French Angel first, then an Asfur, etc.. and then finish off with the King Angel (I found it to be the most aggressive).
In one tank, I mixed a Queen, French, Asfur, Maculosis, King, Emperor, Annularis, Blue Face.. and I had very little agression with the exception of the blueface vs maculosis for some reason. The king did go after the queen quite a lot, but never severly enough and never had a single mark on the queen (and she was eating fine).
Then my LFS brought in a Chryssurus angel, and I just 'had' to get it. Threw it in, and withing minutes all the fins were ripped off thanks to the king.
The king then lived in my sump for a month before I even tried to re-introduce him, but once I did, everything was fine again.
Unfortunately, just last week I went away on business and my pump died. I come home, and most of my fish were dead.
Maculosis, and surprisingly enough, the blueface were both alive and still 'ok'. Even my porcupine puffer died through the ordeal. At any rate, just try to add the least aggressive first, and then the most aggressive, and preferably more than one at a time except for the initial purchase.
Hope that helps.