Urgent Vet Care Needed for Our Buddy

This is Marshall, he’s is a Dalmatian if you couldn’t tell by the dots! He’s been struggling with seizures since we got him as a rescue and unfortunately he had gotten into something that he wasn’t supposed to and is extremely ill (throwing up everything, food, blood, etc) the vet cannot see him unless I have the full amount of money to at least house him. I cannot afford this vet at all right now since I’m a high school student. Anything will help!