I'm still researching my personal soveriegnty.
The link. (This is long)
I've spent the last 4 days looking at seamounts, guyots, and atolls.
Not that I think this is a possibility, put I am being thorough.
The funny thing is that monetarily, this might be the best option.
I disagree with a lot of this guy's opinion on where and how to create the island, but he seems to have the legal stuff down.