Aegis Aurora - Stalwart Commander - Iron Reflexes - Skin of the Lords

Combination of these four seem to be outright insane for LL/CI builds when you have Grace+Determination+Discipline but I'm not sure what class and what skill to go with. Obviously the chest has to be something else for LL but CI skin of the lords with IR look more optimal. Need advice from mastermind build crafters.

You want to cap your block/spell block ideally while getting enough armour to work perfectly.
There are shields with ES (life) on block so you want to beat that stuff.

Rare Shields have 5% ES on block --- with 10K ES it means 500ES on block
I would aim for at least 50K armour. Why 50K?

1) It means 1K ES on block (with 10K ES)
2) You can get full benefit from Vaal Molten Shell to avoid one shots.

Guardian, Gladiator, Ascendant (Glad + ?) but with new jewels and stuff you can make pretty much whatever.

Would you like Zombie Necromancer using Baron?
Mana guardian using SR / RF?
.. whatever

I think you can get an inspiration from poe.ninja (search for Aegis).

I use inquisitor but damage is shit (dont have currency to buy 4-5 blue skin of the lords).

you can take this guy for reference
https://www.youtube.com/watch?v=G9rsL-EAbSw

i try to copy his build with shit skin of the lords. didnt have the damage but able to tank sirius beam and 20 wave simulacrum. Copying the tankiness is easy but you need money to get decent skin of the lords

Ive tried to theorycraft it early in the league (planned like 150k armour) and there are several problems that made me decide not to do it:

hard to get decent damage: you invest in block and defensive auras which does not make much room for damage

either its gladiator but with skin you will want to use a spell or ele hit which does not go well with the ascendancy.. or something with lethal pride (Glancing Blows) but then it sucks you have to travel down there for Iron Reflexes

you will get great defenses against spells and attacks but will still have troubles with DoTs (including physical DoT) and secondary damage

AA will probably allow you to afk in 20 simulacrum, but still I think overall defenses of herald stacking build (especially guardian) will be superior. and you know how the damage comparison would look like :)