I think that if you use the Bluray ripper option on DVDFab, you don't need to extract a single file, it will rip a proper 2D image.
Also, I've compared the 3D Bluray to the LD rip made by Molly, and even though the video is better than the 2D Bluray, it still doesn't come close to matching the original colors, everything is too bright and the characters still seem out of place.