This has been done before - do a search.
Lowered wagons with +48 offset rims will rub in the rear.
- Don't lower a wagon.
- 215/45-17s on +53 offset rims.
- Get the rear fender lips rolled.
I have 215/45 Bridgestone SO3s on 17x7+48 rims, Tein wagon coilovers, -0.9" rear drop. My rears rub - fender lips to be rolled soon.