Coven list for escalation league

So the local Games Workshop is starting a escalation league. 500pts, no models can be painted yet. I already have a 1500pt list and to get to 1850pt I was going to add Coven choices. The league seems like a good way for me to buy my units and meet gamers in my area. But will this list get crushed?

Haemonculus w. Venom Blade, Liquifier Gun - 65pt

10x Kabalite Warriors w/Splinter Cannon in Raider w/Splinter Racks -170pt
4x Wracks in Venom w/Splinter Cannon -105pt
5x Wracks w/Liquifier Gun -60pt

Talos Pain Engine -100pt

I have little Anti-Tank... For those of you that have played 500pt leagues, will I end up playing most games against heavy armor? I have no idea what the meta will be like so any experience you guys have would be greatly appreciated. Or how do I tweak this to get some anti-tank in there.

500 pt league? that should be fine, one dark lance is enough to destroy a couple of rhinos, I highly doubt there will be tanks unless someone is playing Imperial Guardsmen or Dark Eldar (hmmmm.....) but if you want some more dakka then trade the talos away for an elite choose of 3X trueborn with 2X Dark lances leaving 14 extra points to upgrade something.

I would definately drop the Taloi and a wrack for more AT in the form of a ravager. 1 dark lance is never enough to kill even one vehicle.

What if I drop the Venom Blade on the Haemonculus and upgraded the Talos to have a Twin-Linked Heat Lance? Or I could drop one of the Liquifier Guns. Since we are in store it will be a smaller table so the range on the Heat Lance might not be as big of an issue. I just think the Talos in close combat at this point level will give so many armies problems.

I already own two Ravagers, and since the league requires unpainted models I'd have to buy a new one which I don't really want to do.

So its really a question of two Dark Lance shots as Lord_Alino suggested or one Heat Lance.

A few Blasterborn would probably be useful in place of the Talos. Next time the point limit is raise I'd say add the Talos back in. Darklance Trueborn aren't that good, in my opinion, and you do need a bit more AT.