just out of curiosity, is the OP's fan clutch working as it should? The fan clutch fluid can be changed out based on individual needs. In the landcruiser world, this fluid is different viscosity depending on where the vehicle is getting shipped to.
I also installed a 4runner fan in front of my condenser for cooling it down while driving slowly. I also changed the fan clutch fluid to 10,000 CST many years ago and now I'm thinking about removing this electric fan and bumping up to 15,000 CST in the fan clutch.
My V8 4runner didn't come with a pusher fan so I figured I don't really need it as it's merely a band aid. The GX has them due to a second evaporator for the rear passenger but dont' quote me on this one!