Gary's tumor removal

As some of you know, sweet (sometimes grumpy) Gary has developed a mast cell tumor, which was discovered by his wonderful doctors at MedVet. Gary is my 11 year old chihuahua who has an attitude problem when you first meet him but has somehow stolen the many hearts of my veterinary coworker family. He has had a significant heart murmur over the past few years but still loves his snuggles, running around the house, and his cheese from the doctors at Medvet! The mast cell tumor has to be removed surgically; otherwise, the cells have the potential to migrate to other parts of the body. Unfortunately, the surgery is a little expensive for his family. If you could help in any way, we would forever be so grateful!!!