The only way to know what your situation really is, is to measure your car to see what room you have to work with. You can make a simple tool out of angle iron and some all-thread to mock it up. There's been lots of articles on how measure and it's the only true way to know. People can give you ballpark sizes that generally work but to get it exactly right means figuring out maximum tire section width, diameter, and wheel backspacing to center everything in the wheel well. Most wheel manufacturers can make you a set of rims that fit your needs if you give them your measurements.