1500 pts new army

Hi, Denizens of the Dark City.

I've been observing these forums for a while, and I decided to convert from Chaos to DE because I HATE SPACE MARINES... Even if they are evil. Anyway, I've only played a few 500 and 750 pts games with my spiky friends, where my Haemonculi and Wracks just didn't perform well, so I thought of creating a hybrid Kabal/Wych Cult list. Here's my first try for 1500 pts:

Duke Sliscus 150
Succubus (Agoniser) 85

7 Trueborn (ShCx5, SCx2) 139
Raider (FF, NS) 80

5 Warriors (Blaster) 60
Venom (SCx2) 65
5 Warriors (Blaster) 60
Venom (SCx2) 65
8 Wyches (Hex, Agoniser) 110
Raider (FF, SP, TGL) 80
7 Wyches (Hex, Agoniser) 100
Raider (FF, SP, TGL) 80

3 Reavers (Blaster) 81

Ravager (3xDL, FF) 115
Ravager (3xDL, FF) 115
Ravager (3xDL, FF) 115

Total 1500

Please comment, I badly need improvements.

What I want to do is form a deepstriking assault force with the Wyches, supported by the Succubus, while the warriors and trueborn (who will get Sliscus' 3+ venom) snipe from afar. Ravagers can deepstrike if needed to take out a key enemy vehicle if needed. Here are my concerns:

-Am I over-upgrading the Raiders? Should I drop the shock prows and TGLs to get more Wyches?
-Am I a bit low on Darklight weapons? How could I be more effective in adding more to the list?
-Do the Reavers (which I included due to the new rules) promise good play with such a small unit?
-Am I making the most of Sliscus' abilities (especially contraband)?

Thanks!

ravagetheimperium