Looks like my review over on the caddy brake thread was good timing, I hope this has helped you make an informed decision.
I can only think of positives regarding this mod especially if it comes in at £300 less!
The best bit is the consumables like pads and discs remain the same.
As you said throw a couple of braided lines on there and it's a better combination.
I can see on eBay you can pick them up for a little as £25 each!