What size electric fan?

The motor is offset, but not enough for my application. I even tried moving the radiator over another inch or so and still didn't get enough offset. Besides, on mine, it doesn't even clear the shroud, which I would be willing to do some trimming to if it was close, but it's not.

One thing leads to another, I know this one well. How about an electric water pump? Would that fix the problem? $$$