I have built something similar but I thought EP without Gundo and Fist of Az is not really viable for pushings.
So I just made a build for T10 rift/fast 50-55s build that just like Inna pet but optimize the SWK 4pc for trash mobs.
Skills: T10 -> GRs
Mantra of Conviction - Annihilation (for movement) -> Agility for grift (or you can just keep Annihilation)
Sweeping Wind - Fire Storm (for maximum radius) -> Inner Storm (for Spirit Regen)
Dash - Way of Falling Star (for speed) -> Blinding Speed
Epiphany - Insight -> Desert Shroud
Cyclone Strike - Implosion (maximum pull radius)
Passives: I use NDE, Unity, Momentum and Beacon of Ytar for T10. Switch Momentum for Harmony for GRs. I can actually drop NDE for another dmg buff passive (Determination probably) but I don't like Molten affix kills me xD
Gears: 3pc SWK, 5pc Inna, Binding of Lesser Gods (Nems for T10), Kyoshiro belt, avarice band + boon of hoarder and Obsidian ring (switch avarice band to CoE for GRs). Cubed Vengeful, Crudest and RoRG
This build is not for pushing since it lacks dmg reduction. But I managed to clear T10 rifts sub 3minutes. Not as well as OPM but it's something fun to try because I got tired of OPM.