I'm guessing this is NOT compatible with the side cases.
The support system has a rear cross brace, joining right and left sides, that comes as high as just under the bottom of the stock (revised) taillight support arm and is about 3 1/2" behind the rear of the seat.
It appears this would block the license plate (a good thing?) and that the turn signals would be blocked from anything but a straight-on view by the side cases themselves.
So... you you pays your money and takes your choices: beauty or utility.
But I may be wrong.