here's an italian unification event, if you download it simply needs to go into the 'events' file and replace the current unification events.
this sorts out an error in the WW1 chain, but you'll need to do a copy and paste into the Balkan events file
this is a script that will make the AI build a reasonably historical late game navy (1910 or so). The only nation missing is Italy as that is what I was playing at the time
The 'help improve PoN' forum has a lot by Christophe but you need to some work to extract the information and paste into the event files.
I have coded up a lot of his work around Germany, Japan, Russia, the Balkan strand, WW1, Italy, Crimean War etc but that is all in the format of the spreadsheets that AGEOD need. Some will be in the patch (up to AGEOD to decide which) and what I'll do is then generate a set of modified events that people can use for their own purposes (ie an unofficial variant)
digging around in my old files, I've found and attached a complete balkan events file (so just copy into your directory), has an improved 1878 logic, the refinements to the wars of 1912-13 and a cleaned up WW1 chain. You'll need to unzip it.
[ATTACH]33914[/ATTACH]
the other source of scripts maybe the people involved in the large MP game that ran for a while. Not sure who is best to ask - SirGarnett? Kensia? Jim-NC?