Help with Abby's medical expenses

Hello my name is Sean and I am trying to raise money for my cat Abby's medical bills. My girlfriend, Morgan, and I own two loving cats, one of which has been suffering from chronic nose bleeds and respiratory issues since August. What started as a potential flare up of FHV has now come down to the possibility of nasal cancer. Abby (our chonky baby) has been through multiple rounds of medications, vet visits, and procedures the past few months to no avail. Our vet referred us to a speciality internal medicine practice and unfortunately this vet suspects Abby may have nasal cancer. We were quoted $8,500 for a procedure to confirm the vets suspicions, which is unfortunately not feasible for us as I am a student veteran and my girlfriend is a small business owner struggling to manage her own medical bills. We are trying our best to help make Abby as comfortable as possible within our means, but we are in desperate need of help for our sweet girl. Abby means so much to my girlfriend and we can't imagine a life without her in it. Anything will help. Please and thank you!