Wheel spacer vs. wheel adapter
That's what I ended up going with for now, we'll see how it works. I found a good deal on a pair, so at least I can get the car rolling on the new tires and drive it around town for a while to see how it reacts. I can't really see any good way around it other than different rims, but I really don't want a mismatched set, it would just look too weird. I've heard about everything on the things. Some people have had them for years without issues and some won't even look at them.