I would try them, very simple and if you only need a little clearance, it my be the perfect, affordable, simple, and easy answer.I did a dry fit without any tire. It looks like they set too close to the frame. Thought about wheel spacers but don't really know that much about them.
Like that idea. There was more going on in Williams than I expected. Glad I was driving the Roxor , it kept my wife's shopping to a minimum.