Hi
Thomas told me you're having trouble with your offset. Anyway, the last pic you posted is my Z. The fronts is actually +18 and i fitted a 20mm spacer to make it -2. I got the cambers set at -3.8ish to get it look tucked. Hope that helps
Karl (owner of K3projekt) doesn't really know much bout 370Z's offset. I calculated them by my own before ordering it.