So basically I would just use what is in the JFDLC installer.
Thanks for this. The reason I've added CBO in to my install is because I want some features from it, i.e. Happiness, Pathfinder as a starting unit and new Policies (except for Piety, which makes sense to load from JFDLC)... I've already removed, what I didn't need, i.e. Tech Tree, Buildings, Piety changes.
P.S. This morning, managed to break SuperIntelligence load somehow. It still loads, but icons disappeared from the tech tree. Possibly caching issue. Too many experiments.
Reverted to the previous version and it seems to be OK now, but I don't remember, what the changes were. So, if I want to actually do anything more with it, perhaps it would be a good idea to put all of this under version control, otherwise, I start loosing track of what is happening...
BTW, Investing in Petra (and building it) worked for me. But the game crashed later I think it didn't find amber or something related to amber. Extra Luxuries might've been loaded incorrectly.
Wishful thinking, when I have time, may be never...

:
0. Fix the setup above, it has bugs as pointed earlier in this thread... It would be good to actually build MP from it. Currently even CP + Cultural Diversity + JFDLC is building, but then there are no buildings loaded...
1. to implement one more Victory condition, i.e. Happiness, which would trigger when 80% of population of the world and 80% of your and your allies population is happy.
2. add Future Worlds to the current setup. Add 3 new Ideologies to be available in the Future era only. And tie units, buildings and a specific victory condition (i.e. completion of Special Superproject) to those ideologies. Take units, buildings and ideology ideas from Alpha Centauri civs mod.
The idea is that whichever faction, which follows Alpha Centauri ideology wins, it stays on Earth, the rest will have to go to space to find another planet.
P.S.S. Future Worlds seems to be quite incompatible with Steampunk era. But the tech tree viewer merges them more or less OK, so it might be not that much work to bring them together.