Dude, at least try to be realistic. There are billions of people, and more to come. Don't you think it's possible you won't find the PA at all?
If you were the richest man on earth, then maybe you could advertise and maybe get lucky and have someone E-Mail you saying they have it. Other than that, it's impossible.
As for the other goals, the Hau sounds reasonable. The disk, not so much.