Soloed it to finish the quest tonight as RDM42/BLM21 (Tarutaru).
Spawned it with sneak on, and promptly ran a short distance to buff - Refresh, Protect II, Shell II, Blink, Stoneskin, Phalanx, Blaze Spikes, Enfire, Barwater.
Pulled it from the Labyrinth Scorpions with Bio II, then proceeded to land the other debuffs - Gravity, Slow, Paralyze, Blind, Choke, Shock. Didnt need Elemental Seal for any of them.
Proceeded to melee away at it, recasting Stoneskin once or twice. Got hit by Fluid Toss once for around 150-180 iirc. Only brought me into the low yellow range, but I never needed to cure myself; rather, I used drain and kept regen up. I also never used Elemental Magic until the end, at which point I finished it off with Thunder I. May have used Shining Strike once, although I can't recall using it.
Finished the fight after a few minutes and recieved 39 exp and the Burnite Shell Stone. Had plenty of MP (50-75% somewhere) and HP (yellow, maybe barely orange, had regen up).
If anyone's curious as to the exact gear I was using feel free to post a reply. If you're on Gilgamesh and are too low to take this, gimme a holler to see if I'm free and I'll see what I can do.
EDIT1: Updated a few things I forgot.
EDIT2: Just checked screenshots I took with FRAPS. Final stats:
HP [340/498] (yellow, 68%)
MP [277/480] (58%)
Edited, Thu Sep 22 02:42:44 2005