Rogue Epic MQ

[MikeXG]

I have been considering buying my rogues epic. I've never done an epic quest before, and I've only ever MQed Boots. I am a bit curious how MQing an epic works (specifically the rogue)

1. Do you need to complete parts of the quest ahead of time? IE do I need to be flagged as having completed certain stages myself?
2. Do you MQ parts of it or just the final turn in?
3. Wiki has rage bringer listed as 30k I assume that is the cost of the entire MQ?

Any insight is much appreciated, I need to start saving and I figure anything I need to accomplish for the quest I should do ahead of time. Thanks all