I've raised £2000 to help get a 9 year old girl to Florida

Later this year i'm away to Florida with my family. This year we're being accompanied by my wifes friend and her granddaughter Olivia who is aged 4 years old. Her father (my friends son) has funded her trip. Ok so far.
Now the thing that bothers me is the fact that Olivia has a 9 year old sister called Aaliyah who lives with her and their Mum. Aaliyah has a different father. There is simply no way that Aaliyahs Mum can get the money together to send her on this trip with her little sister, and I feel very sad that one child is getting to go on what is every childs dream holiday whilst her older sister is missing out for no fault of her own whatsoever. Various attempts have been made but to no avail. Its grossly unfair.
Now heres the crunch part which I think will divide opinions...
What I am now trying to do is raise the funds to pay for Aaliyah to join her little sister on this trip, as I cannot begin to imagine how upset she must be feeling knowing her sister will be going to Disneyworld, which is every childs dream, and she has to stay at home. I want to make this cruel situation disappear.
I’m not going to lie. Aaliyah isn’t sick or disabled, nor is she in any danger or distress. And I’m fully aware there are hundreds if not thousands of more worthy causes out there. I’m not doing this for personal or monetary gain. I’m doing this for Aaliyah. I’m doing this because I care.
If you feel the same way as I do and would like to help me reach this target then ANY donations would be extremely well received and very welcome. I realise this is a big ask and as I have said previously it will divide opinions. I hope it doesn’t cause offence. I’m hoping this will be seen by as many people as possible so that the target will be met.
In the event of any funds being donated over the target then the excess will be donated between homeless and cancer charities.
Thank you so much for taking the time to read this,