!!! Egypt is so awesome!! I think it would be an amazing middle name! But I am pretty obsessed with Ancient Egypt.
I can't say I'm a fan of
Maya but I don't hate it or anything.
Gaia is too much of a religious deity for me to use.
I'd choose Kaya but maybe with the spelling of Kaiya (Kaya looks like KAY-ya whereas Kaiya looks more KIE-ah to me, though I don't really like the look of "Kaiy" together).