I know its not what you were hoping for Jason, but hopefully this will speed things along with your s.s. stuff. like others have said, plenty of people have proved dr's wrong, If you've got the willpower, which I know you do, you'll be walking again in the future...
and remember, it hit your foot, not your face, heart, spine, or any other horrible horrible places... you still get to watch your kids grow and live life not as a human vegetable in a bed.