Help Children Say Goodbye to Their Father

I don't know where to begin. Today, I received news that the father of my children was on life support with the prospect that he's not going to make it. He lives in Mexico and my children and I live in the US. My children are in shambles right now, as am I. I don't know where else to turn.

I'm hoping that someone and others would be able to help me raise the money to get my children's passports renewed, tickets to get to and from Mexico, food while we are there, and possibly have a little left over to cover some of my wages that I would lose. I feel horrible for turning to friends, family, and strangers, but I just want to give my children one last chance to say goodbye to their father. Any help would be a blessing to make this somehow possible.

Update: He has passed away but we still want to go to his resting place and be with family. This is a hard ask but I appreciate everybody's help.