Why do you need spacers????
Spacers are dangerous. The can shatter under hard turning and lose a wheel. The extra distance the tires stick out is detremental to handling. Since the wheels are further out it is easier for a line, crack, curb, pot hole, or a patch of sand under one tire while braking to spin the steering wheel out of your hands.
Used to see all kinds of kids driving around with the entire wheel assembly sticking outside the body. Florida laws put an end to that.