I'm so glad Clover doesn't have lymphoma.
It was good that you didn't do the biopsy, though I'm not clear if the vet wanted to do the liver or pancreas. My vets tell me that biopsy of the pancreas is *not* recommended - it's very risky.
Since Clover will be on two antibiotics, you may want to use some probiotics to help out his digestive system.
Do lots of research on prednisone especially since it might be contraindicated for Clover because of his heart murmur.
Have the vets suggested that Clover may have IBD (Inflammatory Bowel Disease) or Triad disease (the pancreas and liver are inflammed, and IBD is present as well)? My vet suspects that my cat who has liver and kidney disease may also have Triad disease or IBD. There's lots of info on those conditions. Just a couple of links:http://www.manhattancats.com/Article...itis_test.htmlwww.vetinfo4cats.com/triad.html
I know the pain meds can be expensive, but hopefully Clover will only need them a couple of days. Buprenex works very well, and will give his body a chance to heal. Being in pain puts lots of stress on a cat's body, especially a kitty like Clover who is underweight.
Thanks so much for keeping us updated - you obviously have your hands full. I hope it will not be too much of a hardship to get Clover the care he needs.
You've been doing a great job trying to help Clover - he's a lucky boy to have you looking out for him.