275/60/15 is a perfect fit
Get rid of the spacers! (I have nothing against spacers, I'm using three sets). One inch to the springs is twice (at least) as much as you need. I can barely get a fingertip between my sidewall and spring, and it doesn't rub.
Edit: 20 mm spacers, so 7/8" approx. Get some billet 1/4" spacers, and send it!