WIP Army. 1500 Points Realspace Raiders

Hi All,
I'm slowly building my collection and can pull together an 1850pt list (which is exciting!).
My next battle will be 1500 points vs CSM.
Here's what I've got written up:

HQ
Archon (Agoniser, Helm of Spite, Blaster, Shadowfield, WWP)
Haemonculus (WWP)

Troop
10 Kabalites (Raider, Racks, Sails, Disintergrator, Stealth)
2x 5 Kabalites (Venom, 2 cannons)
5 Wyches (Agonisertrix, Venom, 2 Cannons)

Elite
5 Truebron (Raider, Sails, Stealth, Dracon w/pistol)

Fast
Razorwing (3 Mono, 1 Shatter, Lances, Stealth)
5 Scourges (4 HWB)
5 Scourges (4 Heat Lances)
3 Reavers
-------------

Does this seem reasonably nimble enough to dance around the marines?
Regarding the Trueborn Dracon, i've had a few games where I had to split the archon out of the trueborn unit in order to shoot and assault due to the single rapid fire weapon in the unit. Does this seem reasonable and a good decision?

Any other thoughts are most welcome!!

Thanks

EDIT:
In an afterthought, seeing that I don't have anything combat related that needs to be boosted into hostile territory, I will drop the raiders' sails for a soul trap. Unless 10 points can be better spent?