Skaven/chaos 2000 points, what is a good list?

[Kugane]

I am looking for a good 2000 point list. I am currently building a new skaven army and thinking to go for Verminus. Does anyone know a good competitive list?

I would also like to know what to do with the stormfiends I picked up. I was hoping to get 3x warpfire projectors bits since the box doesn't seem to have more than 1 set, but i cannot find anyone that has them for sale. So I was wondering if 3x warpfire is the best option currently? Or is there a better combination?

I was planning to buy Sayl and perhaps Archaon soon, what else should I get? My budget is 100$ atm.

Mycurrent miniatures:

90 clanrats (80 with spear, 10 handweapons)

(30) 29 stormvermin and 1 converted IOB warchief to vermin

5 rat ogres I may convert to stormfiends

2 packmasters

1 arch warlock

3 engineers

1 warplightning cannon

1 doomwheel

1 verminlord deceiver

1 slaughter priest

10 gutter runners (converted from the bloodbowl minis)

30 nightrunners (converted from clanrats)

Spinetail

2 assassins

Tretch

1 warchief from IOB/SoD

3 warpfire thrower teams

2 poisonwind teams

3 NOS stormfiends