Sorry no pics yet,
OEM wheels, Toyo R888 215/45
Mugen Sport suspension, camber adjusted to -1° rear
J's Racing 10mm Spacer at the rear. Works fine, no rubbing (tested).
Also tried 15mm at the rear and it seems to work (and looks very good!) but haven't tested it without the suspension tower yet.
15mm at the front is a no-no. 10mm might work.
When you guys say "no rubbing", you do test the setup by lowering the wheel inside the arch without the coil & spring installed, right (rear only obviously)?