I am soooo sorry to hear about your aunts ordeal, and then this on top of it all?!? Definitely sounds like all of them deserve to get away from reality for a little bit. I am also a BRB bride and have a few relatives who have younger children. One of which is in the wedding and made a big deal about not having children there. In the end it is your day and I am sure you will work it all out. I too would be a bit nervous having a stranger watch my young children in a strange county. With that said, since the ceremony is only 10-15 mins long, how long between your ceremony and dinner? Would there be enough time to fit that in for them, just to let them stay for part of the reception? Not sure if the rule states they can only attend the ceremony or if it is for an hour and everything that can fit into that hour. Just another option.
I would ask Keisha if there is some other way, i know spending extra money just for 3 is hard to handle...but is an option. Good luck, we are all here for ya!