Help Nogah Live

Vet thought she had kennel cough, then pneumonia. Turns out she has one huge mass and two smaller ones in her chest. This moved her lungs down and mostly on one side.
She has trouble breathing due to this and can only eat a tablespoon of can food at a time.
She still plays but only for a few minutes, she becomes to winded. She has laboured breathing all the time which causes discomfort.
Vet took x-rays today and says she needs $300-$500 cat scan and then they will know if they can biopsy.
If so it could be cancerous or not, IF they can remove it that will cost thousands.
She will be 7 on May 5. We rescued her at 3 months, and she was house training while our 2yr old potty trained.
We want to give her 14 more years.
She's micro-chipped. Has her shots, is registered. We care fore her and love her.
My husband lost his job and we just have no savings, she's been in perfect health we never saw this coming.
Please help
The cat scan is up to$ 500
If possible the surgery and treatment will not be min$ 2000
If you can please help us keep her
Thanks
Rebecca, William, Richard, Athena, Stan, and Brenda.