Hi cpfuture,
I was referring to the board layout, meaning that the silversurfer wouldn't fit inside the A500 casing (or you should leave the case off or make a hole in the case). The only way I can see that happening is when the clockports face the A500 extension slot and the silversurfer on top of that sticking outside the boundaries of the A500 case.
But then again, I'm not completely sure.