Another pulley question

Since I've got my 360 in the car I was originally going with a 5 1/4" water pump pully. My 360 has the older cast iron WP to match my radiator. The bottom hose is on the drivers side. I'm looking at all the aftermarket crank pulleys and none are for the earlier drivers side lower rad hose. The one crank pulley I had that would line up with the ps pump is too large and interferes with the wp pulley. I think it's from an AC car. Is there an aftermarket 2 groove crank pulley for the older pre 1970 waterpump? The one I have is 1 1/8" backspacing. Or if someone has one for sale?