I get it about issues and wanting to change things with a new toy, that's a given. I will say that when I drove it that I didn't like the steering either, Cr8 will concur as he didn't like it too. It's like there's a void at center and have to take up some slack before the car responds. Again, we never got that far into the issues that need addressing, to me it's either the pump or the box itself? I did try at one time to get the jam nut loose to try and adjust the box for cr8crshr, but there isn't really enough room to get some good smash on the nut to break it loose without bustin up your hand. Weather that's the problem or not, I can't tell, that balls in your court now!
If I remember right the pump is an AMC unit, don't know if that has something to do with it or not? Hopefully Cr8crshr's following this and your repairs/upgrades and we'll help in any way possible to inform you of what and how we did things on the build.