I am just now finishing my motor up, and I'm weary of the low-mile auto zone alternator that is on there now. Shortly after I get the motor in 519, I'm moving to Texas and thats a bit of a drive. So should I get a spare, or just go to Mitsu and see if they can get me an OEM unit? How much would one be from the dealer? BTW, a Saturn alternator isn't an option right now.