Getting my brother a wheelchair and a prosthetic

More than ten years ago, my brother Efrain J. Martinez got a bacterial infection on his foot, which set off a host of medical issues. The infection continued to spread to both his legs, and eventually he developed MRSA. After a number of surgeries, hospital stays, and partial amputation on both feet, the doctors have no choice but to amputate his right leg just below the knee tomorrow morning, in order to save his left leg. The road to recovery will be difficult and he will be in need of an electric wheelchair in hopes to improve the health of his left leg along with his lively hood. In two to three months time he will need new prosthetic leg  and hand controls for his truck. Any help will be deeply appreciated by my family during this difficult time.