Power Steering Pump Pulley not lining up

I'll post a pic tomorrow, it's dark here now. The pump off the 63 looked totally wrong so we are trying to put in the pump from the 86 truck. Problem is when I bought the 340, it was just the engine and nothing else so I'm trying to work with what I have. I went with the Mopar Performance alum. water pump cause that was all that came up when I searched for a fit on Summit using the 340 engine. I'm not opposed to buying a new ps pump but both the ones I have do function just having trouble with the fit. I didn't realize changing pulleys would be a possible requirement. The pulley on the crank and alternator fit okay, it's just the ps pump pulley won't line up. Based on the pics I've seen on Ebay I think I have both types of pump. The one on the 63 was a Saginaw type and the one on the truck is Thompson type. Fought with the thing for the second day of almost 100 degree heat so I'm really hoping for "throw money at something that will work and be easy."