Oh, I forgot to update you. The three new Eggs are born. I decided I'll leave the one Egg that has no 31s as everything is 10 or higher for that Egg. Those stats are 10/23/16/18/17/22.
As for the three new Eggs, with the original Egg listed fourth, the natures and IVs are as follows:
Hardy - 18/31/20/20/31/13
Quiet - 08/20/20/31/20/12
Quiet - 31/22/23/31/24/12
Calm - 14/04/31/02/11/07
What I can do, if you want, is leave the fourth one in the trio and make a pure luck-of-the-draw thing. After all, having that original one WOULD be more of a challenge (lowest ATT/SPA/SPD/SPE and second-lowest HP, with 31 for DEF). I won't tell you which other one I would eliminate in that situation, but let me know if you want to do that. Otherwise, my Egg ordering initially was by Pokédex number, so I already have a Kanto row and a Johto row; Hoenn and Sinnoh are in the same row. I won't be doing them in order, either, and I will not be putting the first Egg of the 3 in the first spot every time; all I'll say is that the three on either side will be a group, meaning if the Eggs were (for example) Bulbasaur, Charmander, and Squirtle, I could order them as Squirtle, Bulbasaur, Charmander, but they would be kept together in the group regardless, no switchouts. :D