That's great news..UPDATE:
Well, I didn't have to build any fences. They got a few minutes of heavily supervised interaction time for several days, and then I would leave him out during the day and bring him back in at night, and now he's out there just like he was before. The limp is almost nonexistent. I suspect tomorrow he won't be limping at all. I think the only reason Pyrrhos is still limping is because she isn't letting herself heal. She likes to fly and then come in for a crash landing. Her favorite thing to do is dive-bomb the pool. Soooo, when I turn their unused outdoor house into a brooder, I'm going to keep her inside like I did with Erebus so her leg can heal. It's good to have found a reason why she wasn't healing despite the water therapy and Epsom salt treatments.
As for interactions, everyone gets along very well now. Eris and Thoth were chasing Erebus, but now that he's pretty much all better, they don't bother anymore. So, I do believe you guys were correct, they were only doing it because he was weakened. I think the reason they aren't that way with Pyrrhos, is because she won't let them. It's kind of a rule in the flock: Don't mess with Pyrrhos, lol. She's smaller, but I think she could tear some feathers off if it was in her personality to do it. Thankfully, she's a very peaceful bird and only delivers a peck if she's pecked.