That is a horribly life changing event. You're a lucky man in many respects, although you may not feel that way.
think about it positively, you've had 40 years of wonderful time on your motorcycles throughout the years. That's pretty cool by it's self.
I wish you all the best, but as you may know, we're always here for you if you need something.
glad you're still around to talk to us. and prosthetics are good now, you may not have to give up riding if you don't want to.