If it helps anyone at all, here is the hyper wall guide that I made. Unfortunately, I can only show a flattened version, but if anyone likes this, I would be more than happy to attach the layered version in either Photoshop or Paint Shop Pro formats.
The dark blue is where your walls go. The light blue is always the wall next to the default area. Please note, I've gone one step beyond Dinonykos and changed the default wall by adding one pixel so that it is now symmetrical above and below the horizon line.