Meh, by design I'm still trying to figure out how we were expected to do the fight. I've seen it done with the super tank method, but the bosses are somewhat overtuned as they were (AoE stuns, AoE silences, AoE binds and lots of damage and one shot abilities while not having anywhere near the number of people that would make such an encounter workable). And you for some reason want to add more. >.>;

Not a bad concept, but some heavy retuning would be required.