Help Sky get Treated for Melanoma!

Sky is a beautiful, smart, speckled gray Quarab mare living with melanoma under her tail. Even though melanomas are common in gray horses (around 80% will get them), Sky's are growing more and more each month. Sky is the sweetest horse I had ever met, and I have worked with a lot of horses. She knows a handful of tricks, and loves hugs and kisses. She does so much for us, so in return we want to do something huge for her; for her future.
For the two 1/2 years we have had Sky in our lives, we were told there was nothing we could do, until recently.
We were informed that at University of Florida there is a new study and vaccine that could treat equine melanoma. Only problem is that it is very costly. As a teenager I would have trouble affording this vaccine. 
I want to thank you from the bottom of my heart, and Sky's too for your donation; but sending prayers is most important♥