Jidoor : Auction?

[Dell]

I'm about to go to the Cave of Sealed Gate or whatever it was called. Now that I have the control of Blackjack, I wish to do some sidequest. One of them is the Auction. You can get ZoneSeek and Golem but someone win ZoneSeek so my question is how do I get ZoneSeek back?

It'll appear again. You just have to wait a while

So, I should go to the Cave of the Sealed Gate first?

I think there's some file on the Internet that allows you to make the Espers appear at a 100% rate.

Is this a cheat? I don't want to use a cheat.