Selfcast Dark Pact Necro powered by Kitava's Thirst

This is my first own build and only a THEORY CRAFT until league start.

The idea of the build is to self-cast Dark Pact with mana cost of >= 100 to trigger [[Kitava's Thirst]] which then summons the skeletons, casts Desecrate and Flesh Offering, which in return powers the 200% cast speed of corpse pact.

I plan to start this league with self casted Skeletons + Dark Pact and transition into this build as soon as it is possible. (need a 6L and [[Fevered Mind]] to hit the 100 mana breakpoint, OR link with archmage gem)

Mana regen is gonna be interesting since our Dark Pact costs 100+ mana and the triggered skills in the helmet will cost additional mana (desecrate and offering could stay lvl1)

The PoB shows 6M DPS without flasks, can someone take a look and tell me if the gear i chose is realistic

PoB: https://pastebin.com/tjYqiNzK

I'm open for feedback and improvements. I'm already aware that a dedicated minion helmet and self-casting the minions would increase the damage alot but i prefer to only use 1 skill (+totems on boss) since i play on console.