29 to 50 in 2 days?

Ok so I completely missed the ring event. I started playing MS again a few days before it finished and only managed to get to my ring mule to 2x.
From reading other threads some people are advising to stay at level 29 until the 21st and then level so i can continue the quest.
My problem is I'm only going to be here for a few days that week so my question is this;
Is it possible to get my ring mule from 29 to 50 in 2 or so days?
I know a lot has changed since i last played to any help on training spots would be appreciated.
Also what job would be faster to grind?

Without the Golden Temple, CPQ free winning is your best bet. It's possible but a lot harder.