right hand left, hand water pumps

hey all I am finally buidling a motor 2 years behind and not a stroker . what we got was a 1971 360 block with a passenger side timing and drivers side water pump. We ran into a problem we overlooked right away I wanted to put in a cooler radiator that runs passenger side bottom . the timing cover water pumps I have from my 340 wont interchange with the 360 to intake water from the passenger side with out losing my alternator mount hole and the holes for my power steering mounting and the water pump intake tube would block my timing marks . does any 1 have apart # for a water pump that is like a 340 water pump and accepts my alternator and my power steering and possibly has a drivers side timing and has a bottom passenger side water tube for a small block 65 barracuda size aluiminum radiator ?? other wise build on go buy a new radiator and sell this 1 . not off to a good start . if you have #s or parts can you send pictures and years to [email protected] and or try to post please ? thanks