ok, is there an easier way of getting an ethereal cerimonial armor other than farming for one... (or using an editor, which is lame)
Actually, you can't even use an editor because the character and item files in ES aren't compatible with the character/item files in standard D2, so you'd have to build an editor just for ES from the ground up (which, like you said, takes all the fun out of it anyway). There's no way to get ethereals easily unfortunatly, since they're basically the strongest weapons and armor in the game. Best bet you'll have is stick a bunch of negative magic find on your character(I think some charms do that) and just farm white items till the ethereal you want pops
Barb mercs can live in most places, but pretty much every other merc takes a lot of gear to survive in hell. Usually stacking a lot of life, damage reduction and a shitload of life-steal does the trick
Nihlathak is the hardest place in the game basically. If you're dying too much you probably need to get either more life or get your resists higher (there's a few ways to go up to 95%, sometimes 75 isn't enough). But yeah after that it's mostly a max life thing, Battle Orders from A5 mercenaries(or Oskills on like a weapon switch or something) helps a ton