it takes all of 10 minutes to wire the thing up. my buddy has his on a toggle switch so when he goes to the track he can turn the pump on with the car off and cool the car down faster. it wouldnt take long to find a 12v acc lead.

this is an afternoon job at most. thats up to you, i already said i would personally NOT spend 300$ for a measely 8rwhp unless my waterpump is already gone...then i would go electric. 300$ would be a good start on rear end gears, a tuner, or something else that would give much more benefit than a water pump.