And.......................yes, it all matters.
With a suicide perch and a rear mounted spring it's getting lower, depending on if the perch is raised or not. Once you've mocked it all up to find out where you're going to be, THEN you can start making informed decisions on what more to modify if necessary. Rather than Z'ing the front, you may be able to raise the suicide perch to get the drop you need. The issue then would become the tie rod clearance at the bottom of the frame.

One more note based on the type of questions you've asked. If you want it to steer at your command, and not at the whim of the road surface, make sure your drag link is parallel with the hairpin at ride height. And preferably with the pitman arm lining up with the rear attachment point of the radius rod. The type of steering system you're using is very prone to bump steer if not setup properly.