There's too many changed stations in my universe, possibly every sector, would it be possible for you to do some sort of import details script? Similar to what Logaan (sp?) did with X2, and presumably X3. It finds your details and writes them to a simple .txt file, only difference is that it'd be doing it for AI stations instead? You then open up the Planner, and it loads all the station details... I doubt the placement of stations is important though, meh.
I dunno, just an idea... will save many people headaches

Note: Just read the rest of the thread, noticed other people saying the same thing.