Just finished soloing this guy on my 71BST w/ cleric merc. BST stats: 17000hps selfbuffed + Temerity rk2, 2200ac, 2100 atk, 1100AAs
Mob stats: Approximately 195k HPs, took me 7 minutes to kill him solo. This mob is an SK, but I didn't see a HT. Doesn't mean there isn't one, but I didn't see it.
He also enrages, summons, and is immune to root/snare like all other named in this zone.
Fight details: I got hit for a max of 2994 (average of 1758), with him getting some lucky rounds of double that. Thankfully, he was so busy casting crap I resisted 100% of the time to give my cleric some time to fill in the gaps.