i have 125fcr with
enigma
shako
insight
spirit
fcr ring w/ life steal (can be replaced with bk5 or other if +15fcr on amu)
raven
fcr amu
to gloves
arach
wraithstep boots

merc eth:
obedience
bulwark
treachery

this build owns everything and never dies, and it's cheap.

honestly if you have any problems with this gear or better then you should look at how you skill and stat your character

No need to pay or anything for advice but I have tried several diff builds and landed on ES Enigma with a mix of MF (253%) and pure damage

I can clear P8 anything including 96 TZ most stuff dies in 1 hit. I use a either a Conviction or Fanat Cursed Hepha Demon bind and a couple Defilers to spread damage around
Gear is below

Hellwardens with Protectors Stone
Eth War Pike Fort (looks cooler than thunder maul imo and 20 diff avg damage)
29 FCR Ars Dul Meph with Um Rune
2 skills/6FCR/20 all res/20 MF amulet
Enigma Sup MP
Arachs
Trangs
War Travs 45%
10 FCR All Res Ring
10 FCR Dual Leech Ring

Swap CTA/Spirit Monarch
Act 2 Might Merc w/ Eth Duriels Shell + Eth Andys w/ Ral + Eth CV Insight

Warlock Torch + Anni + Gheed + Bone Break
2 Eldritch Skillers
Various MF/Res SCs to cap res and hit 250MF


upgrades to this build are a GG warlock circlet mostly