I see that some wonder wishes are inconsistent, people want the best of two branches.
With competitve civs, such utopian scenarios are not feasible.
Oracle and Hanging Gardens will keep Japan happy until the Unique Unit, the samurai, is rendered obsolete. Fanatikku, the Capital, will surely reach 12 pop quickly.
With only temple to lean on and some diamonds in the south, and the 2 police units of despotism, we can only reduce 4 unhappiness right away. A size 12 city will require the 3 content faces from the Hanging Gardens and the extra happy face from theOracle in order to keep Fanatikku operational. Other cities may well need the 2 extra content faces. Monarchy also allows cities an extra police unit, Fanatikku should certainly have more than two garrisoned, 3 at least.
Temple 1
Diamond 1
Oracle 1
Hanging Gardens 3
Police 3
9 total happiness for the long term, sufficient to handle the security problem.
Keeping wonders and tech separate is a flawed concept, as the techs decide what wonders we can build first. And there is no nr 2.
I expect a consistency of thought in those who wonder about wonders, and set realistic wonder ambitions, not one person taking the 2 best wonders to look good.