After doing Charles' shackles again I have found that you don't need to remove the tire (although it does help with rear access).
If you get a buddy to come by all you need is two of the scissor jacks.
Jack up the rear tire until it is just off the ground. Then use the other jack inside the leaf (as per the how-to) to push the leaf down for easy removal of the bolt.
That's it. Much faster than we previously thought.