Best ifs kit? rms, hdk, gt suspension, or magnum force?

I am very thorough, I'll say that, I was just curious, because I know bill from rms modifies his spindles for that exact reason, bump steer, although I'm sure it's fine, I just don't like the idea of welding to forged steel, you really have to be careful pre heating and post heating to prevent the weld from becoming brittle, I did talk to him and he said he does offer a brake kit that has a 58.5 hub to hub, with 5.5 inches of travel at the wheel, and I've read the gt suspension has a 58.5, with 6.25 inches at the wheel, so many options out there!