Help! Rudy needs surgery

Hi, my name is Rudy.  My stage name is Rockin' Rudy, but my friends call me Rudy.  I'm a 6 year old dachshund. My mom is a senior on a fixed income. I fell and hurt my back yesterday, now I can't walk. The vet says that I need an MRI to find out what's wrong with me.  So far I'm not responding to the medications and I don't like staying at the vet office.  I miss home and my mom.  Depending on the results of the MRI, I'll need a surgery to save my life. The vet says the MRI is $2000 and another $4000- $6000 for the surgery. Any help you can provide will help my mom with my expensive vet bills. My mom needs me, I'm her constant companion.