Aroaki afore thirty

I decided this a few weeks ago but there's nothing like a public declaration to make a decision binding: I want to climb Aroaki - that is to say Mount Cook - before I'm thirty (or before I stop being thirty). I'll have to get training but I reckon it's achievable to the likes of me. Preferably I'd like to do it as a member of a team but if that fails you can hire guides who'll Sherpa you up to the summit in three-four days.