Off the top of my head
For the "far older and wiser than thou, o smelly human" grey elves, I'd go with something like kyujutsu, with some minor tweaks.
For the "we are one with the forest, in a way you can't understand, o smelly human" wood elves, I'd use a combination of ninjutsu and an ch'i, for a mysterious forest-dwelling weirdness.
For the generic high elves, I'd use a handful of CSLs with bow, and maybe some fencing, or possibly kenjutsu, though I'd lean toward more of a wushu look, myself.
Black Rose