I almost did that last year 75K > Platinum, i had found a $1100 China Southern flight in Premium economy that was going to meet the MQD and MQM w/ 1 additional BOS-MSP-BOS. However i cancelled once the announcement for their departure form skyteam. MQD aren't hard to earn on DL when traveling on partners since they are based on percent of miles flown vs the actual cost. Cost of awards with miles earned is the biggest downfall.