magnum power steering pump with serpentine belt adapted to 73 power steering box?

A friend of mine who is not an internet person wants to run the 360 magnum with the factory serpentine belt and a factory 360 magnum power steering pump in a 73 Dart. He wants to retain the Dart's stock 73 power steering box and just buy (or fabricate) power steering hoses that will connect the 73 box to the magnum pump.

Has anyone encountered this problem?