Bodyswap + Kitava's thirst + Ice Shock Nova

So I have dumb idea

https://pastebin.com/5i6SS7hA

The idea is basically to use Bodyswap with 100+ mana cost to trigger both Ice and Shock novas with Kitava's thirst
Similar to lightning warp, "Dealing spell damage in an area at both locations"
I theorycrafted a 3.61 cast speed with an average of around 1Mil DPS (All three spells together)

I didn't explore with any cluster jewels, I just wanted some help to see how expensive it would be to make it viable.

I feel there is some good potential with those interactions. I just feel like I'm missing a puzzle piece

New iteration
Cast speed of 5 with a total of 1.2Mil DPS (When all triggers)
The only problem right now? Mana sustain
Have a mana cost of 138x5 Cast/Sec result in 690 mana cost per second. I only manage to get to 449

Hierophant would fix our mana problem, but at the cost of around 70% damage, so not really doable

https://pastebin.com/hjA5xeeX

Any Idea to improve this ridicoulous project?

EDIT: New pastebin with improved Mana regen. I managed to fixed the mana sustain with Alira Bandit, removing the glove and keeping mana cost to 103 per cast.

Dps was reduced, but very slightly. Level 89 seems like a good spot to be "Possible", but I still didn't find the best option for damage.

1.6Mil with Vaal RF and RF stacks seems low and I can't figure out a good way to improve it.