Where did you get your front disc conversion?

i just bought a pair of early viper calipers for my valiant. i already have the 75 k-frame and discs but i want to upgrade to the 11.75" rotors. A.R. engineering makes the mounting brackets and recomends the correct brake lines for the swap, then i'll go to auto parts for the cordoba rotors... should stop pretty well. i'm already running cobra 17" rims so i could even go to 13" rotors and clear the rims but they cost quite a bit. i haven't decided on rears yet.