Prop valve for a body disc conversion

Converting my front brakes to disc from drum on an a body using the scarbird conversion.I already have a disc bake master for a 1973 a body with discs. Now the prop valve i know i must change. Will this one from summit racing work?

http://www.summitracing.com/parts/CLP-PV-2/
and would i need a valve like this for the rear brakes with that prop valve?

http://www.summitracing.com/parts/WIL-260-3279/