"Sounds good to me."
The first thing he does, once the eyes are out, is regenerate Madara's own, and cast Remove Blindness, if that's necessary. Then he runs through the purification and magic-removal spells, explaining each one in broad terms before casting it; that done, he's prepared to cast the resurrection itself. It's long, but otherwise similar to his other spells: after several minutes of chanting the offering disappears and Izuna's body appears in its stead, unbreathing; he keeps chanting as a sense of presence grows in the room, stopping only when it fades and Izuna takes his first breath.