Why you no use search option? It's a heavily detailed subject!

Also why'd you fit the 2 pots for? I'd be using the 2wd calipers from the Sierra Sapphire RS Cosworth. You could use the 4x4 ones with the vented disc aswell.

For example:

http://www.ebay.co.uk/itm/Sierra-Cos...cAAOSwyjBW6s94

You'll need the 2 slider/carrier brackets for the calipers.