Was thinking about doing something like this for the past few weeks or so. Since Majora finished his OoT2D map, I got some inspiration to start this. Be forewarned, this map will be HUGE. You can see the dimensions alone just for this uncompleted area.
Anyway, I will post updates in new replies and update this first post with the most current areas.
Currently used tools:Game Maker 8(not 8.1)
Nothing is 100% set in stone. Right Now, I am just trying to get it all tiled out in the way I envision it using just A Link to the Past tiles(which I am pulling straight from the Lightworld complete map from vgmaps). Once that is done, I will open up in paint.net and fine tune it since there will be some errors due to LttP not having the specific tiles needed to make areas and tiles seamlessly transition.
It would look empty in some areas due to the scale I chose. Remember, there would be enemies all over the overworld to replace the random encounters so a larger world would be filled to compensate.
I hope you enjoy this and PLEASE, do not steal. This is NOT for distribution, this is for criticism and suggestions.