Here is a list you might try, and could be fun and nasty too!
Lets see, you wanted to include the following models...
20 wyches check
10 warriors check
10 hellions check
6 reavers check
Lelith check
2 raiders check
In fact you would still need to buy 2 Hemo's, 18 Wracks, 4 Wyches, 3 Ravagers, 2 Venoms, and 1 more Raider
The 4 extra Wyches you need, you should be able to convert from the extra parts that come with the Venoms.
HQ
Lelith 175
Hemo 1 w/ Liquifier, WWP 95
Hemo 2 w/ Liquifier, WWP 95
Troops
9 Wracks w/ Liquifier, Raider w/ DL, FF 170 *
9 Wracks w/ Liquifier, Raider w/ DL, FF 170 **
9 Wyches w/ Haywire Grenades, Hekatrix w/PW, Raider w/ DL, FF 198 ***
5 Warriors w/ Blaster, Venom w/ 2x Splinter Cannon 125
5 Warriors w/ Blaster, Venom w/ 2x Splinter Cannon 125
15 Wyches w/ 3 Shardnet+Impaler 180
Fast Attack
10 Hellions 160 (Only putting these here because you want them
)
3 Reavers w/ Blaster 81
3 Reavers w/ Blaster 81
Heavy Support
3 Ravager w/ 3 DL, FF 345
Total 2000pts
* Lelith and Hemo 1 go here
*** Hemo 2 go here
You have 12 Dark Lances, 4 Blasters, 4 Liquifier Guns, 4 Splinter Cannons.
If you didn't want to include the Hellions, I would replace them instead with
4 Trueborn w/ 4 Blasters, Venom w/ 2 Splinter Cannons 158
2 points less, and you get an additional 4 Blasters and 2 Splinter Cannons.
Now deployment of this list is funny shenanigans as we do the pain token shuffle.
The three squads with "*" are going to be shuffling on their first turn.
Detach Hemo 2 from squad *** but leave the pain token for the Wyches. Attach Hemo 2 to squad **
Detach Lelith from squad * but take the pain token from the Wracks. Attach Lelith to squad ***
In the end;
Hemo 1 will be in squad *
Hemo 2 will be in squad **
Lelith will be in squad ***
Squad * and ** will still have FNP, and should rush forward for standard WWP tactics.
Squad *** Will now be filled with Lelith, 9 Wyches and two pain tokens for FC and FNP right at the beginning, zoom their Raider forward for carnage!!
The 15 Wyches should be arriving through the WWP, as should the Hellions. You could also bring the Reavers through the WWP as well but shouldn't be needed. You may also want to combine the two Reaver squads but being able to shoot more than one target is beneficial.
The intent of this Hybrid list was to allow you to use all of your models and still try to be competitive. Yes it may seem like a small waste to bring two WWP as a delivery system for only 10 Hellions and 15 Wyches (or if you take my suggestion and replace the Hellions with Trueborn, then it's just 15 Wyches), but those Wyches can tie anything scary in combat for a long... long... time.