MitsuStyle - Different Water Pumps

Well as everyone knows, I've been troubleshooting a running hot issue. I will be changing the head gasket soon, and while I'm doing that, I'm going to just swap in a new water pump. There appears to be 2 different types. See the picture below:
http://www.dsmtuners.com/forums/atta...1&d=1141882602
http://www.dsmtuners.com/forums/atta...1&d=1141882602
After reading up on this quite a bit, general consensus seems to be that the 1st one pictured is the superior design. The 2nd one pictured with the exposed blades, is apparently inferior, but is the OEM one. This is what my research has turned up. Does anyone know which parts store locally sells that 1st design, and with metal blades, no crap plasic blades? It'd be nice to just pick one up locally rather then ordering it from some website.