Help the adopted Alaskan Malamute get a diagnosis

Nala is a 11 yo Alaskan Malamute being adopted in 2016. Being with me for 6 years, she recently refused to eat, her back legs completely collapsing and bloody discharge running from her nose. We couldn’t get a complete diagnosis from the first ER, while according to recent conversations with the doctor, the best scenario could be her having pneumonia and the worst be having a cancer. However they needed to do further exams to find out what’s wrong with Nala. On top of several thousand dollar medical bills I have paid this year, it’s hard for me to pay for another estimation of $9,159 (and this only included the hospitalization and basic examinations). I don’t want to put an end to Nala’s life without detailed diagnosis. Let’s see if there’s a chance for Nala to recover with a treatment plan. Thank you!