Which Drop?

[Dads64]

I am just starting out on my 1964 Short Step and am working from the ground up. I will be taking the cab off in the next week or so and then preping the frame to get started. I am doing suspension and disc brakes all the way around.

I am trying to decided on how low to go, I want the truck to be very drivable but also want it to look agressive. I am also not sure about the c-notch. I have been thinking 2.5/4 kit but hear I should really do the 4/6.

What is your opinion and pictures would be great?

Thanks,
Jay