The LOTR Project would probably take longer to complete than it took J.R.R Tolkien to actually write the books. Emil Johansson has attempted to place every single character from Middle-Earth into one gigantic family tree. This means that he would have to go through the extensive J.R.R. Tolkien collections and mark down which characters are related to each other.
This isn't just the Lord of the Rings trilogy by the way; this is every single piece of middle earth lore known to man. The family tree is gigantic with connections going all sorts of directions with long lines of kings, sons, elves and hobbits.
This may be the greatest undertaking since the United States put a man on the moon. The LOTR Project will hopefully be made into a poster so nerds everywhere can hang it on their wall.