Gotcha, not many tips on a root language according to that post huh? Other than the "hissing/spitting sound" and the names following English phonics.

I did however find this:

http://fandango.exp.jp/name-generator.php#result

It's a name generator for the races of Eorzea. It may not be as custom as you would like, but it could lead to something you can call your own.