Animals & Pets/ Emergency Veterinary

I discovered a large (almost golfball size) tumor on the back of my chow/schipperke's tongue and she needs to have a biopsy ASAP. The cost is for a bioposy, lumpectomy and chest x-rays. She is having trouble swallowing, but still has her energy and love for people. Her name is Kya and I've had her for 12 years so she is no doubt my little sweetheart.
Someone had abandoned her in a dog park in the middle of the summer in Arizona and there was no way I was going to leave her homeless and dehydrating. 
I can't afford the vet cost, as I have serious medical issues myself and no insurance currently.
If anyone needs verification of the veterinary estimate, I will be willing to fax it to you so you know it is a legitimate request.
Thank you so very much for any help you can offer.