Endgame purifier - help needed

I just started the Ultimate with 86lvl purifier. http://www.grimtools.com/calc/0V0GOo2m - I use this build as reference for masteries & devotions. I managed to cap resistances and keep decent DPS. But I still feel monsters punishing, most mini-bosses and even some white mobs.
I have (buffed)

  • 8100 HP
  • 1400 armor rating
  • 2700 OA
  • 2000 DA

I need some advice - how can I make my toon more tough? Maybe replace some constellations for tanky ones?
UPD: Hit 94, now I need some reference for gearing with end-game items.

Armor and DA are very low. No wonder you are having a hard time. Post your full build with gear using grim tools

I tried to make grimcalc stats as close as it can be, but still there are some differences in numbers. Actual res are: 80% pierce, poison & vit, 78% bleeding, 75% aether.
http://www.grimtools.com/calc/DV95LqWV this is what I have atm

Post the gear you’re using mate

Sorry, wrong link. Updated to proper now

I’m thinking about something more like this, at least it worked as a commando http://www.grimtools.com/calc/a2d70vLN.
Aegis set seems to drop for me like no tomorrow too.

So I hit 94 and made it to the Blood Grove. Now I can equip highest level items (got not much good ones). Can anyone show me grimcalc for elem-dw build as the something I should farm for? Would appreciate that very much.

There is nice purifier I have http://www.grimtools.com/calc/YZe9EvkZ
You can try it.