Insectile (Non-Psionic) Thri-Keen HD 2/LA+3/Totemist 2/Warblade 1/Sneak Attack Thug Fighter 7/Bloodstorm Blade 4/Full BAB.
Pick up Point Blank Shot, Alertness, Weapon Focus (Claw), Multidexterity, Multiweapon Fighting, Improved Multiweapon Fighting, Greater Multiweapon Fighting, Craven and Telling Blow (via Flaws).
Any magic items you can use to help qualify gives you access to Rapidstrike and Improved Rapidstrike for a further 5 Attacks. LA Buy-off too can be useful.
It's not expressly clear if it adds to all Sneak Attacks, but if it does, you add +4d6+17 to each Attack.
The weapons you want are +1 Speed, Deadly Precision (Complete Adv if possible, MIC nerfed it) Assassination Keen Manyfang (take from the Manyfang dagger, Serpent Kingdoms) Kukri's, with a Rogues Vest, Mantle of the Predator, Bracers of the Hunt and Bracers of Murder (MiC to combine the two). The bracers of murder change your minimum SA damage from 1 to 2 (average 3.5 becomes 4).
If you score a Sneak Attack that is also a Critical Hit, you're dealing +14d6+85 damage. That's on each attack.
This is your attack routine as well
Claw/Claw, Kukri/Kukri/Kukri/Kukri/Kukri/Kukri/Kukri/Kukri/Kukri/Kukri/Kukri/Kukri/Kukri/Kukri/Kukri/Kukri/Kukri/Kukri/Kukri/Kukri/Kukri/Kukri/Kukri/Kukri/Kukri.
(Claws would 'only' do +10d6+34 unless they too have the enchantments added from a Necklace of Natural Attacks, in which case they'd match. Because theory crafting/math hammering is fun, your total sneak attack on just such an occasion would be - 378d6+2295 damage at up to 50ft range.