Where can I find these weapons?

[.Quinox.]

I'm looking for Crea Saber, Crimson, or Seva Cresa. I need one of these so I can hit 80%, and I can't seem to find them anywhere.

[DarkShadowX]

Crimson you can get from Deljabans in SEED Awakened or True Darkness S, as a HU-type.