I did it solo as a Gen Monk last season.
The only stuff I changed from the base build was:
Fire SoJ (Bane of the Powerfull over Stricken), Mantra of Retaliantion - Transgression, all Green Gems + White on helm.
At monent I'm working on that again (collecting all Caldesan on my ancestrals).
I also tried the Golden Stack variation, but I can't sustain fast killings to keep thougness on Torment XIII, not yet... and its a pain is the ass against the rift guardian.
(sry for bad english, not native)