If the bolt was turning before it snapped off in the sleeve, then you can probably tappity-tap and rotate the part in the threads out with a hammer and a punch once you get the rest of that stuff out of your way. That would save you a lot of drilling and tapping. That would greatly reducing the chances of destroying the threads.

Better place an order with Honda for that bolt right now. You won't match it in a hardware store. When you get the new one, you'll see why it seized. It's got RIBS!