Right i've had these calipers and new discs for a while now, cost me Ł300 so far with new braided lines etc.

Been meaning to fit them but basically they don't straight bolt on, I've been looking in to getting a braket made up specially but i've looked in to it a bit more and was thinking will a S6 front arms fit? as this has the correct fitting for the caliper.

Just wondering is there anything i've not thought of? and will my driveshafts fit ok, or will i need to change bearings, or top arms? And will the wheel offset be the same? as i know the S6 has wider arches, did they poke the wheels out or the hubs?