Sorry to drag up an old thread.
But I finally did this mod today.
The wheel is from a GSV50R ZR6 and has been installed into my GSV40R ZR6.
I ended up making a adapter harness to convert the 50's connector over to a 40 (keeping the original clockspring).
I have added the extra pins for the paddle shifters but I have not connected then as yet.
Quite happy with the results. All the radio buttons trained into my Android head unit and the display button and backlights work.