Understood. With a Class C, we can get into a situation where all the mirror "sees" is the front corner of the "house." Trying to get "square" doesn't always work. To help, the camera would have to be on the House, not the Cab. I wonder what its angle of view is. In other words, can it cover the blind spot?
Remember, you'll need to confirm that your monitor allows multiple inputs. That or add a separate monitor for the side view camera(s). Then there's the matter of switching. The big Class A's are set up to switch to side camera when the turn signal's on. There might be a manual way too.