I had honest intentions of doing this, but ended up beating everything over the head with a club anyway. Best of luck to you.
This is one of the easiest playthroughs out there. Hidden Body makes everything a joke as you can just run to the boss and use your overpowered spells. --- Currently Playing: Dark Souls (just PvPing and Coop), XCOM Enemy Unknown Games on Deck : Dragon Age 1, Deus Ex, , FO:NV
I've got several characters devoted to co-op/Warrior of Sunlight, set up with different SL's to maximize co-op efficiency. The downside though is a LOT of their gear was BB'd/muled to them, so I don't know how you'd feel about them backing you up since it may take away from your goal of pure challenge run. Especially in the lower levels when you've got a Sunbeast with lightning/chaos weapons cleaving everything apart. --- Smoking Ghost / Feral Manx Proud Outcast of Capcom Unity