While I agree that putting on vitality accessories isn't optimal, I find myself going back to a VIT accessory set for soloing peisteskin maps, because higher max HP means Sustain heals for much more, being that it is a % heal. I focus target him, keep sustain up, and nothing can kill him. The hardest has been the marlboros because of bad breath, but even they're beaten. It's a balance when you use vitality accessories, because titan lasts longer and you pull less hate. You just need to stay alive and beat the timer.
For right now, this works, but I'm totally up for changes come 3.0.