Bryan,
I am sorry to hear about the medical mistake and the results it took on your body. I commend you for continuing on with your life. I do not live in NB. However, here is a video of Tim Farmer (lost use of his right arm) and how he continued on with life. This is a shortened version of the Tim Farmer Story.
http://www.youtube.com/watch?v=v6pd_yOEvNo
For deer hunting with rifle, he uses a bi-pod and fires with his left hand off of his right shoulder.