I'm so sorry to hear Prince isn't doing well.
I really hope the vet can offer something to help make his CT less painful.
I'm not sure where you are in Georgia or where you are currently going, but GVS is a great specialty and emergency vet. It's on Abernathy just up from where it hits Roswell Road. No idea if they haev a CT specialist, but I thought I'd mention it. I used one of their internal medicine specialists and oncologists when we lived in Atlanta.
Here is the link:
PetOwners Home Page