Steering Conversion Early A body

OK I have a 64 GT Dart going with a fresh 416 in place of the 273. I am thinking I want as much room as I can get for the TTI headers etc. and want to rid the Power Steering for a Manual box. What all do I need to do besides the box? Also on a side note the car is getting a 71 Dart front disc setup and I have the PST heavy duty tie rods, poly bushings etc etc. This should be an issues going manual correct?

Also who makes the best box on the market as far as the quality and feel of the box ? I want the feel you get in a rack car or a cop car and I no it will be some what stiff when not moving. How still are these quick ratio boxes, are they really hard to steer at a stop?

I plan no larger than a 15x6x 205 15 on the front.

thanks all!