In case anyone was wondering, quicksort is already available on the marketplace for the bargain price of 1 credit* per second:
https://algorithmia.com/algorithms/swm8023/quicksort
*100 credits is about $0.01
https://algorithmia.com/algorithms/swm8023/quicksort
*100 credits is about $0.01
I think it is cheaper and faster to run any sort on a local machine than to send the data there and back.