RE: too much?
What are your plans for the car? Do you want a street friendly car that you can take to the strip, or more of a drag car with some street time?
I would say that 5K stall is way to big for any street use, unless its to get to to and from the track. I would chose between a 2500-3500 depending on what your plans are. Maybe someone that has a Auto can jump in as well and offer a little more advice.