I'm someone that likes challenging the norm, and my rogue is less sneaky than your typical rogue. She does fairly well if you want her to bash something on the head. I thought I'd give this a shot, and was very pleasantly surprised when I did manage to complete. I'd done normal and hard before without major problems, but expected that elite would ramp up a lot more in difficulty. In the end, I was just slowed down a lot by having to refresh displacement ever 25 seconds or so and having to swap around staffs. I haven't done any adamantine rituals on them and was using four staves throughout the quest, and ended with three getting worn out!
I used both shrines and did the orthon rather than the horned devil, because I was too chicken =P And about 60 displacement scrolls, 50 CSW pots and 40-50 heal scrolls on a rough estimate.