Definitely what Kicksome said on gear, just takes patience looking at the auction house - which is difficult because their search system needs more options.

We need some kind of boss I think for a barometer on kill speed - maybe Siegebreaker or even Butcher. I realize the videos you made were quite a while ago and the kill speed is much faster now. Currently I am farming act 2 on my monks with ease and slowly upgrading while building my gold chest. I swap to MF gear right before the kill which am concerned about when they switch it so you can't do that anymore (haven't stated how they are going to change it yet).
The nice part on WD's with this setup is you don't have to focus too much on resists because the monsters should be hypothetically locked down.