"Can Torches or Hammers stand up to Percs? I'm also considering an Elegance coral our LFS has had for several weeks and still seems healthy."
No way, don't subject any LPS to a clown fish! It's the constant abrasive motion of the LPS flesh against it's own skeleton that will kill it, and Euphyllias and Elegances certainly fit that bill. Like I said, my clown lives in a big Sarcophyton and doesn't seem to bother it at all. An anemone is more natural for sure, depending on the species of both the fish and the anemone. Captive bred percs supposedly don't always host in anemones.