Have any pics of your path? Im the only one on here i think lowered,
Also depending on how many miles you have i would consider knocking out a bunch of other suspension work when you have it apart.
Spring/summer wheels i have 20x9 wheels with 265/45/20 rubber. If you lower you will rub inner fenders when turning. Mine are about a perfect fit in the front, i have maybe 1.5cm of room between the tire and fender before it would rub.
Here is my thread which should help you out
2-lowered-nissan-pathfinder-r50-se-t447754.html