Biopsy for Baby: Urgent Vet Care Needed

My sweet cat named Baby has been lethargic (not eating, not drinking water) and recently found that her GI tract is inflamed. Her vet wants her to see a specialist and get a biopsy, but the costs for these veterinary bills are just too high for me to cover at the moment. Possible illnesses could be IBD, lymphoma, or other illnesses which can't be diagnosed without a biopsy.

At this rate, if proper treatment is not done, Baby would have less than a year and will perish very quickly. I hate to ask for donations, but here I am trying to gather up money to save her. I just can't sit here watching her slowly perish and regretting that I didn't do everything that I could to save her.

If I don't reach my goal and the donation amount is not significant enough for me to go ahead with her surgery, I will refund everyone.

I truly appreciate everyone's efforts and will be eternally grateful.