Saving Liam's Life

My name is Mags and I'm Liam's foster Mom. This sweet boy came into my life 2 weeks ago.
He was out on the streets abandoned and alone and weighed only 19.6 pounds (he should weigh about 30).
He has a very severe case of hook worms.
He has heart worms.
Worst of all, at some point, he was hit by a car. His rear left leg is dislocated and, as you can see in the above photo, he has lost about 80% of the muscle on that leg.
Mid Florida Sheltie Rescue has been terrific but I really need help to pay for surgery for his leg, for his heart worm treatment, and for his rehab and physical therapy. Even with the generous help of the Rescue Group's vet it is going to be very expensive to help this boy get pain free and healthy again.
He is such a sweet boy, from the moment he wakes up to the moment he goes to sleep his tail is wagging. He truly personifies all that we love about dogs. The loyalty, the joy, the devotion, and the love.
Please help me help Liam.
Thank you for your donation of any size.