Matt is right, and he even omitted a low hanging 15 PRR twist available to monks in Primal Avatar. With that, my Monk will reach ~120PRR. Alongside ~120ac, 1k hp, ~20-25% dodge and 25% incorporeality, a Monk can definitely tank.
A splash in Fighter takes care of Intimidate, and hate tanking is ridiculously easy with Intolerant Blow. +1000% sacred bonus to threat generation? Makes it incredibly easy. One Touch of Death with a 1000% threat mod is the equivalent of 250000 damage, when it makes a save. 500000 when it fails the save. Higher again if it double/triple procs. Threat is no issue at all.