A square set up will work. It will look fine. The 18x10+25 would be what I would run.. with a spacer. Here is a pic of mine for reference. I have lowered the car since the pic when my wheels were gray. Hope this helps! These are 18x9.5 +15 with a 20 and 25mm spacer in the rear.
with 20mm spacer in the rear
with 25 mm spacer in the rear
