After much experimentation, here's how we did it. Now slide a sturdy screwdriver between the socket and the center of the pulley. It's awkward, but it works. With the water pump pulley out of the way, it's easy to get to the crank pulley. The engine provides the counterbalance to your wrenching, so the bolts come right off.
Installation is reverse of removal.
Here we go. The reinstall marathon. Install the new crank pulley. Torque it down using the same pattern you would on a four-lug wheel. Install the new water pump pulley, but don't worry about torquing it down yet.