Lol its impossible. Diablo is much more gear dependant then wow, with no gear you will get one shot by a white mob in act 1 inferno... Even with ranged you cant avoid all the hits and one will kill you instantly.
Also i think just getting to Diablo on hardcore with whatever gear you have is close to impossible in inferno. Melee has a hard time surviving many combos while its so easy to get vortexed and 1 shot as ranged. It would take insane luck, gear and skill to clear d3 on inferno hardcore.