make sure you get spacers (3mm) that are made for your car and not those universal ones. The universals are not as safe.
But try and mount them without the spacers first because some people had the rub issue while others didnt. If i remember correctly more people with the RSA tire had issues then the F1 tire.
im not sure as to a vendor, but give it a try without the spacers first (only an issue with front tires, rears will be fine regardless), because if you dont get any rub without spacers then your better off. If you do get rub then go for spacers. I believe of the group of people affected only experienced rub when the wheel was turned all the way to each extreme while car is in motion. And again many didnt have any issues.