You should have an easier time in Blood Furnace, i have been running it with my team for exp now that they're all honored with HH (80 lock, 63 Pally, 62 priest). The boss that's tricky is Broggok, he himself is an easy fight, but you have to live/reserve mana through the 4 waves of orcs that come out before he does. The rest of the run is pretty easy, just make a mental note where the stealthed rogues are, and you should be able to clear it no problem, and watch for the proximity bombs the technicians drop. The first and last bosses are pretty simple, tank and spank.