If this is not a drag only car, don't waste your money on all that crap.
Sounds like a car with quite a few issues.
To properly convert to an electric water pump, you need a proper electric fan (when i say proper, i mean powerful and connected the right way), to run and electric fan and water pump you then need a 3g alternator.
By the time you are done, you are going to spend over grand, and you will literally have nothing to show for it.
Put all stock parts back on, this way you can have power steering, a fan clutch and a well running car. Shop around for used parts, and i bet you could fix all issues for less than $200 total.
Then you can spend the money you save on go fast parts.
If you think you are getting a ton of power from not using the PS, fan clutch or water pump, think again, by removing the belt completely you don't even get much power. Certainly not enough to justify the cost.