And what is that end? Mike D has already released the awesome Ruins and Ronin; the more I read it, the more I appreciate its elegance and imagination. What I want to do is use my old OA material in Labyrinth Lord seamlessly. Whether I release it as a pdf eventually, I don't know. I'd need to bone up on the OGL and wotnot.
Would I adapt Kara-Tur or have any setting at all? I think I'd leave it setting-less, bar some broad strokes, such as the Spirit World, and the Celestial Bureaucracy.