There's no need to search for gpu rigs this way, there are sites that already offer them. Check out miningrigrentals, betarigs.. Those are just the two that i know of.
I used betarigs in the past and it was always a pleasure. There are loads of algo's to choose from also.
I guess the OP needs a cheap mining set up and cloud mining seems too expensive but it depends on which algo and coin he wants to mine, i would have said he should try bit-x.com.