Margot amputation surgery

Hi everyone, my sweet baby angel Margot was recently diagnosed with a fibrosarcoma on her back left leg. This is a very aggressive tumor and is deeply embedded, so the best treatment is full limb amputation. The surgery itself will cost between $6,500-$7,100. My pet insurance should reimburse 80% of it (if they deem it “medically necessary”), but even so, that’s still over $1,000 out of pocket. Anything you can give would be incredibly appreciated