Family reunion in Australia

In 2005 my younger brother emigrated to Australia to be with his then girlfriend, now his wife. Before he left, our father who was in his early 70's but realitively healthy said to my brother, I'm never going to see you again.  Seven months later my brother was back in England to attend our dad's funeral. I have not seen my younger brother in person since the funeral in 2006.  I was planning to wait until they had children then go and see them all but they are struggling to conceive.  I am a single parent I have never had any financial help from my children's dad.  I was made redundant from my job last year and since then I have had one illness after another.  I am struggling to find work, so the chances of saving up enough money for my two children and I to get to Australia any time soon seems remote.  I am worried my health issues will get worse before I ever have enough money to visit my brother.  My father was the glue that held our family together, now he is know longer here we seem to have driffted apart.  I'm hoping someone will help make my dreams come true and I get to see my brother before it's too late.  I know I will never be able to see my younger brother regularly as he is so far but I don't want to leave it another eight years.