The 12th might actually work---returning flight ex-EZE doesn't leave until 9:30pm on the 12th. Am trying to line up a trip up to Iguazu Falls, and will have a better idea of when my return flight back to Buenos Aires gets in that day. Should have most of the day to play in EZE. And, if the Iguazu plans fall thru, I'll have the whole day.

As for A/C meetups, I'm still good for STL, ORD, MIA, EZE on the way down, EZE, DFW, ORD, etc. on the way home.