Two of the batteries are in place! Because of the placement of the front battery box (where the radiator used to reside) it is not possible to load the batteries in from the top. So the box is designed to be loaded from the bottom. Here's the 2 batteries loaded on the box bottom. Have to be careful to keep them balanced on the jack!
Here's a view of the loaded box from the bottom. The bottom of the box is actually about an inch above the bottom of the bumper, so I shouldn't have any problems with ground clearance.