How about a mod-on-the-fly?
It wouldnt be much more work to write the individual nations boosts for AI into a program. Let the user select who he wants AI'd and writeout the mod. That way the other nations are left unaffected and larger boosts can be incorporated. Heck its all text files, it could even be done with inster files being copied together overwriting the mod and done with a bat file.
It might be a fun add to the Mohansen site (we really need to come up with a name for that). Perl, Java, just about anything altho I dislike the "you must load this to run this" stuff. I could probably do a basic program and compile it.