Raclyn,wow,I cannot imagine what you are going through and the worry with having to ship them home to Canada,but I would do the same.
You have 3 yrs to work on it..
As for the rabies vaccine,my cats do not always show a reaction to it,except one of them developed a large bump at the site the last time,which eventually went away.
I have this absolute distrust of anything Chinese,abhor their human/animal right horrors and can for the life of me not understand how a country like China was"awarded"the Olympics.
I am hoping you have contact with Chinakitten,that all will turn out well with her kittens