Serious question... why don't you switch to United? All those legs count for 100% premier qualifying miles and you don't have a spend requirement. You'll get to 50K easily with those flights. You just need 4 legs on United which you already have. I made the switch which made my life a lot easier than trying to slum it to status with AC since my company flies me primarily on Tango when I book AC. This is if all you care about is *G.