@Gwendar Thank you for your fast answers and for the ideas! I think I'll go with 1 Grinderfist and 2 Doomflayers then as they will be mostly unbuffed. To consider your input about allies, I tinkered some more and came up with this list
Allegiance: Skryre
Warlock Engineer (100) - General
Warlock Engineer (100)
5 x Skryre Acolytes (60)
5 x Skryre Acolytes (60)
3 x Stormfiends (290) - 1 Grinderfist, 2 Doomflayers
3 x Stormfiends (290) - 3 Warpfire Projectors
1 x Warp Grinder Weapon Team (80)
1 x Poisoned Wind Mortar Weapon Team (60)
1 x Poisoned Wind Mortar Weapon Team (60)
1 x Warpfire Thrower Weapon Team (70)
1 x Warpfire Thrower Weapon Team (70)
1 x Warpfire Thrower Weapon Team (70)
1 x Warpfire Thrower Weapon Team (70)
Battalions
Gascloud Chokelung (70)
Gautfyre Skorch (150)
TOTAL: 1600/2000 EXTRA COMMAND POINTS: 8 WOUNDS: 77
LEADERS: 2/6 BATTLELINES: 4 (3+) BEHEMOTHS: 0/4 ARTILLERY: 0/4 ARTEFACTS: 0/1 ALLIES: 0/400
This list leaves you with 400pts worth for allies. Like that you could ally in 2x20 Gutter Runners, 2x40 Clanrats, or if you'd like to you could go for Thanquol and Boneripper just for the fun and style
Any feedback on the list?