This is something I put together with the help of a tool called
Anarchy in the Galaxy in order to celebrate Halloween. With it, I can read the coordinates of every object in every part of every galaxy, and used it to recreate almost all of Ghostly Galaxy, sans enemies. I have no plans on mapping SMG, but as you can see, it is theoretically possible with the right resources.
It took nine full hours to assemble the scene, and I didn't even go into enemies and collectibles. Instead of making one wallpaper like I planned, I went ahead and made six of them, at a whopping
1600x1200 each. Enjoy!