Pieces of Time for low levels

Thank you for the feedback everyone. How long do you think it would take to farm lets say 100 pieces of time from any of the Memory maps?

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Look at it this way -
If I get roughly 4-8 in 4 hours at what is believed to be the best place to farm them, and I kill considerably fast there, it would take me approximately 50-100 hours to obtain 100 pieces of time. If you get half that at memory 5, then it would take twice as long. Someone dedicated to farming them can get roughly 20 in a 7-8 hour stretch, using 2 2x drop cards. It's going to take quite a bit of time, regardless. There's a reason making Reverse gear is costly, both in time and resources.[/COLOR]