I know there has been talk of this, but to what extent can you actually customize the RBI Stadium? Can you add a higher wall or make the walls moved back?
Changing the appearance of the stadiums is trivial. Using any tile editor (I use Tile Layer Pro, available here (http://www.zophar.net/utilities/graphutil.html)) you can easily redraw the graphics tiles. Changing physical dimensions would require changes to the game engine, which isn't something I've looked at.
Nightwulf