Good choice, I've done a couple pairs of caliper brackets for mine and my brothers cars. We use a Citroen Xantia disc (283mm x 22mm) with the FC calipers. I've had a quote to get a batch of the brackets made up and offer them as a group buy but the quotes were a bit high, so I'll be handing the drawings on to a mate when he's back from o/s to see if he can get a better price
My brothers sprinter is also running the same setup just with excel G instead of the koni and he's pretty happy with the handling.