This might be of use to you:
This is a great idea for a mod. I played with the Basilica some time ago, and found it somewhat underwhelming. I think one should consider whether one could find a different solution?
The Stave Church seems a bit of a misfit with Renaissance Sweden. I'd put it with Denmark and take the Ski Infantry out. There's also a Longboat floating around, wasn't that from one of the scenarios - or was that the Mead Hall?
Are you implementing these as you go? Because last I recall it wasn't possible to have a Courthouse which still functioned as intended that could be built in all cities. Also, unique Aqueducts are still bugged in that you do not receive them with the Tradition Finisher.
For some helpful suggestions, I can offer: the Nilometer for Egypt, art of which you can find in the Wonders of the Ancient World scenario.
America: UU: Pioneers: Replacement for Cavalry? Ignores terrain cost and may settle cities.
Inca: UU: Chasqui: Replacement for Scout. Double movement on hills, may build roads after discovering the Wheel.
Japan: UB: Dojo: Use the one from Whoward.
Venice: UB: Canals: Replace Garden, GP rate for Great Artists/Musicians/Writers increased.
Feel free to take whatever you like from my American Domination mod if you're looking for ideas for America. I use whowards Cavalry Garrison there.
For America and Inca as they already have two UU I'm more into adding a UB