Ruby MRI and medical bills

Hello, my name is Riley and my dog’s name is Ruby. She is the sweetest companion and my entire world. At 5am she woke me up and could not walk, tilting her head sideways and blood in her throw up. She is currently at an animal hospital and is seeing a neurologist. They are not seeing the exact signs of Vestibular disease and are hoping it is not ventricular or a brain tumor. I’m order to rule this out we need to move forward with an MRI that costs $3,00-5,000 and we have already paid $1,300 for initial emergency and X-rays and blood work. Our girl is a trooper and we want to see her continue to live a happy life. We know it’s a difficult time and are only asking because I recently graduated school and have not started working yet with no income coming in. Anything helps even prayers and love. Thank you so much.