Oh boy, not looking forward for when the time comes to do mine. At least thanks to you I know what to be ready for.
This tool helps when dealing with disfigured bolts:
Gator Grip ETC-200MO Universal Socket
And having plenty of extra spare bolts is a good idea (to replace ones with damaged heads).
The specs are: 5/16"x1.25" bolts; 175 inch-pounds