I did this. Taking the time to get to level 60 makes it easier, but I did all of mine at 58. I did SM Cath, ZF, then I took the whole team to BRD until 50 before hitting UD Strat. I hit 60 on my DK by the time I got there. I was successful becuase I always had at least one healing class, but usually two, in my group. I specced every healing class as healing, regardless of later intent.

I was full unholy. http://www.wowarmory.com/character-s...mhammer&n=Whar Having done this three times I would probably tweak my spec a bit for more mitigation, but I accomplished what I set out to do.