If it ain't broke don't fix it right? That being said you might wanna leave the atf where they are. Your only problem seems to be the armatus, I've always seen them do well with rays personally, you say you have some tanks with just rays, I can tell you don't want to accept the fact that it's seeming like you have to part with the armatus or lose more fish, so why not try him in a tank with just rays? I'd would say if you do add the atf add all of them, it may help and disperse aggression, or it could turn for the worse and they can gang up on him or he can kill them off one by one kind of thing, or he could fight to the death with one or some and lose multiple fish at once. It's up to you on whether you think the risk is worth it. Personally I would just get rid of the armatus, it seems once they are larger they only do well in extremely large set ups. As for adding all the wolves, I think they'd be fine goin by what you've said in the past. I wouldn't say add the aros, I don't think they'd fare well, if anything add them to the tatf and wolves and move the clown back to the 750. I feel the main problem needs to be solved before anything else is moved around, and the main issues is the armatus. Once that's out the way, you can try the atf and other wolves in their which going off of what you say sounds like it'd work.