SPC balls joints will pull the top of the wheels in I think around 6mm. If you're doing this modification purely for fitment reasons I suggest going to the Origin Fabrication offset bushings. They do the same thing with no additional moving parts. I run these on my car and they make a gigantic difference when fitting the same size wheel all around. The front doesn't bulge and look out of place like it normally does with a non-staggered set up.

I'm to lazy to go find the original pictures, but I've attached a screenshot from my Instagram. It's not perfect but it gives you an idea of how much room you gain. Keep in mind the angle is slightly off, and the camber hasn't been adjusted. It's just a direct before install and after install picture.

Edit: For Reference the least amount of negative camber I could get in the front after the install is -1.5 which is not a problem at all.