I use Real Strategy as well, and it is as usual with your mods, excellent.
My thought was that you could probably meld together a combination of the various mods that give scaling bonus to the AI for Science, Culture, Production, Gold, Tourism, giving Amenities, etc. with what you felt was best, and any additional settings that you feel are warranted. Because you perform a significant amount of testing and validation to ensure you mods work as intended, and then regularly update, you could add another great mod to your collection.
Not that it's fair for me to suggest that you take on additional work, and you may not feel it's necessary but I thought it mind be an interesting endeavor for you. And selfishly, I would have a tougher challenge, and as a bonus the community would too : ) The default difficulty settings with giving the AI bonus units at the beginning result in a very challenging start, but the AI still fades in the later eras, from what I have seen.
Attached is the sql file Jam's Difficulty Mod. The settings in have been modified by me in the culture and science section to give the AI a larger bonus as the eras progress.
I also attached a zipfile containing the Smoother Difficulty files. It does some interesting things as well,
adding amenities, etc. I don't like the combat changes or the player penalties.