After something of a hiatus (alright, it's been six months), I've stirred into action on converting this into Vicky 2 and though I'd show everyone how far I've got.
For reasons that I can't quite remember, I'm doing the conversion by hand rather than using the converter project that's currently being written. That said, I have been using their province mappings as a guide, which has sped things up immensely, so thanks to everyone who contributed.
So far I've mainly been concentrating on getting everyone in their right place on the map. I've been working down from the biggest to the smallest states and here are the results:
Asia
Europe
The Americas
The mappings I'm using aren't always what I'd like, so once all this is done I'm going to have to make another pass to tidy up. For example, this means ensuring countries aren't cut in half - something that's happened to Bohemia at the moment.
After that, there's still a lot to do. I don't intend to change every province's POP values, but I should really do it for the Americas and Africa and those parts of Asia that have been (or haven't been) colonised. I can guarantee that Trebizond won't start with many Greek-cultured POPs if I don't do this, and where's the fun in that?
Factories I might just leave as they are in vanilla. For Japan that means starting with none, but given that I'm already topping the leaderboard that seems fair enough.
Alliances and diplomacy are another matter I need to look into.
Chris Taylor pointed out that the HRE needs to be modelled somehow, which might prove tricky as the emperor - Modena - may not be a Great Power. I could address that by giving them extra prestige, or I might try using vassals, alliances, or some mixture of the two. Some sort of HRE breaking up event chain is a possibilty, but one that relies on me actually learning how to write them.
Finally, I'll make an attempt to set the armies of at least the major powers up correctly. With any luck I can actually begin writing the AAR itself sometime this year!