Update # 1:
We are set to leave tomorrow morning for Miami but we have been denied our visas. On to the top secret plan B. The good news is that we are all packed with each bag weighing about a half a pound shy of the maximum weight. Except for one which is considerably overweight but not enough to necessitate the purchase of an extra bag.
Therefore, all we need to possibly make it to our destination is more money, and then, more money. Hopefully that will be enough.