i will be traveling to ixtapa from usa with a 3.5 hour layover at the airport in mexico city. (aeromexico) i have two questions that i hope someone can help me with. first i have been informed that i will clear customs at mex and then recheck for my domestic flight. are there recheckers after customs or do i have to go to the aeromexico counter? also i want to get peso's at the airport. are there any exchanges open at 5:30am or am i better off using an atm. if atm is better do they have english instructions and do they have the slide thru type? thank you in advance.