28 Jun 2005 at 20:51 - 3
First of all, yes, every class has different sets of 15k armor. I don't know a full list, but I'd expect for most classes it's just a 15k version of the 1.5k armor you get at Droknar's. Only exception I can think of is that Warriors don't get Knight's or Wyvern armor; they get Dragon's instead of Wyvern.
And to answer your original question, you get 2 sets at Marhan's Grotto, and 2 sets at The Granite Citadel. To get to the Grotto, just head out the S exit of Thunderhead Keep, and keep going SW towards the coast. It's pretty hard to miss the place. Getting to the Citadel is a bit tougher. From the Iron Mines of Moladune, you head due W, until you reach Copperhammer Mines. From there, it's a long hard journey up N to the Citadel. I wouldn't suggest running it either, there are Ice Imps with Mind Freeze and Ice Golems with Water Trident all along the way: no fun. You can find it on GW Guru's interactive map, I believe.