I'm up for the role of DPS Herald/Chronomancer (Tank build ready, DPS is in progress), I'm very experienced with the first wing, (second wing will be coming 8.3., so I'll be getting experience with that too), I've got 5 boss kills so far, but i think that the failed attempts (around 50) are more important since you learn from your misstakes. Anyway I know everything about the bosses, (I don't have warrior/engineer/hunter, so no advice on that) and I can advise other people (I've actually tried to train my guildmates, but uh... they aren't as eager as I am).
So, if you need me whisp me (CokoladaSunka.1369) preferably during weekends around 6-7pm CET.