I think the Mystic Cobras are overrated. Rare? Yes. But is it really an attractive color? Hell no! Its like a purpley teal-ish greenish pink. Its like the color of some self-absorbed high schooler's prom dress.
That said, I really do like the SN-95 Cobras. Buy one and do something cool with it, like build a 5.4 or turbo the 4.6. That red one is sex on wheels.