2k points for fun

So, I've been playing a buddy of mine who has recently switched to Tau/Eldar from pure Eldar. My list to combat as follows:
(We played yesterday, he took secondary objective with Big Guns Never Tire, and neither of us got The Emperor's will Primary. I had first blood, he had slay the warlord, and we both had line breaker when we rolled a 1 at the end of turn 5)

HQ: Duke Sliscus
9 Kabalite Warriors
Raider - splinter racks, disintegrator cannon, flicker fields

(5) wyches w/haywire - Venom double splinter cannon
(5) wyches w/haywire - Venom double splinter cannon
(10) Kabalite warriors - Raider - splinter racks, disintegrator cannon, flicker fields
(5) Kabalite warriors - Venom double splinter cannon
(5) Kabalite warriors - Venom double splinter cannon

Talos Pain Engine - chain flails, extra close combat weapon, twin linked heat lance
Ravager - disintegrator cannons, flicker field
Ravager - flicker field

(6) reavers, w/2 cluster caltrops & 2 heat lances
(10) hellions

(5) Kabalite Trueborne - 2 blasters, 3 shard carbines - Venom double splinter cannon
(5) Kabalite Trueborne - 1 blaster, 1 splinter cannon, 3 shard carbines - Venom double splinter cannon

points come out to 1997, and advice or tweaks would be appreciated

So yeah that is a BOAT load of guns man. Wow. 6 Venoms, two Raiders, two Ravagers?

Holy moley.

Tried again, this time with 1500pts:

(x3)Talos Pain Engine, chain flails, close combat weapon
Haemonculus, hex rifle, flesh gauntlet

(2x) 4 Grotesques
Haemonculus
Raider

(2x) 10 wracks
Raider

5 Hellions

This list worked very well against his Taudar list, but since we rolled into six, he was able to contest primary, and won. Had the game ended at five, or gone to seven, I would have won. (not crying over spilled milk though, losing is how I learn...)