Installing multiple outboard cameras for maneuvering safety

I'm not satisfied with the compromise view from the existing rear camera on this new to us Landau, since it doesn't "see" close enough to the rear bumper nor does it see much past the toad. The 5" B&W monitor is a bit small for a clear view as well, so I'm replacing the system with a 2-camera, 7" LCD color monitor system, with one camera mounted in the stock location for a "traffic view" and the other mounted below it for a "toad view" that covers from the rear bumper back to the toad.