I don't think that the DSC will work with only braking. In a sense DSC is actually traction control. Because if you floor the throttle while cornering, the brakes alone won't be able to overcome full engine power, especially on a high power engine. So it will need cutting the engine power to make sure you don't spin.

Do you know how many teeth the Ford rings have? I guess the active sensors could still work with the Ford toothed ring, probably depending on the depth and width of the teeth. It's nice to know that the E46 sensors are very similar in fitment to the Ford sensors. I guess it will be a very interesting project! But for me the big unknown is still whether the MK60 can work with 4x4. As apparently also the E46 xdrive models use a Bosch system instead of the Teves.

But I look forward to your progress on this!