I'd have to agree that this is a very impressive piece, Chaos certainly knew what he was doing here.
Although Asellus' scenario is a bit too random for my tastes, I did enjoy the music from Chateau Aiguille. I could see an extended version of this playing in the final battle against Orlouge. While it's not technically battle music, it would be extremely fitting.
I myself have been thinking about a SaGa mix if I ever get serious and look into remixing, and I'd have quite a precedent to meet if I wanted to match this level of quality.
Great stuff, I'd recommend it for practically anyone with an affinity for classical-style music.