Definately don't have the knuckle bent up front. For now you can drive around with the negative camber, just be sure to rotate your tires regularly. The "washer trick" in back is fine to do since it's not permanent. You put the washers between the upper control arm bushing (the upper control arm is the one that bolts to the trailing arm above the hub) and the car itself. It's also a good idea to get longer bolts to make sure that they thread in all the way. This is what it should look like: