I myself really wouldn't look at this very lightly as changing those pivot points to gain clearance is very serious. You may luck out as it seems Henry did but shortening the control arms does a lot more than just move the wheel in. This will change roll center height, camber characteristics and curve, likely some caster change, length of side view swing arm and front view swing arm would change, scrub radius, bumpsteer and other serious issues could come up so just make sure you know what you are getting when you go to buy. That being said, I'm assuming you are just going to cruise in this car so it might not be too serious for you. It could wear your tires more quickly and make your car twitchy and shaky at speed or in corners. You could just get different rims and tires with more backspacing (if possible) or a narrower tire.