This might work well then for the mixed medium format I am thinking about. This will be an online game with Maptool and Ventrilo. But between those sessions I was planning on making heavy use of forums for some of the kingdom management, building, etc.
That way we can handle kingdom building details and background stuff on the forums and then during actual sessions we can still handle kingdom building, but it will be more of the role-playing portion of kingdom growth than going over the administrative portion which would have been handled on forums.
I think this AP will work well in that format. The Maptool and Ventrilo bit helping move the campaign along at a speed akin to a normal face-to-face game as opposed to the snail's pace of a Play-by-Post. We'll see how it works out, still in the formative stages of how to run it at this point.
You could use Birthright. Because the not-kingdom-management-part can't be that large. You do advance more slowly in online games according to my experience. So maybe you should focus on the management part in the forums.