HELP! 1970 Dart Swinger 340 with a/c water pump belt tensioner pulley and bracket wanted.

My car was ordered that way but at some point a previous owner removed and discarded all the underhood a/c parts. I was fortunate to find a person with a 1970 Swinger that decided to go racing and r ed moved all the a/c parts from his car and sold them to me. He included every nut and bolt except his car was a power steering car. This bracket/pulley is used on manual steering equipped cars without power steering. This is the very last item I need to finish my restoration. I'm really hoping someone is able and willing to help, I would really be greatful.