Help Bane my GSD

If anyone could help me in raising money to keep my best friend alive comfortably through this tough time. He has fluid building up and it is crushing his lungs and intestines, which is slowly suffocating him. They've done a chest tap once to help pull out fluids and they took 2 liters out! Unfortunately, there's still a lot more. At this time they're not certain of the cause but they believe it's cancer. Please help me keep my best friend happy and comfortable. Thank you!