Looking at your picture you may be able to do something with a different wheel offset. The ones you have look like they have a fair amount of negative offset. How much clearance do you have between the inside of the tire and the spring and wheelwell? You mentioned you have moved the springs inboard already, with a narrowed rear are you going to have to move them in even more? Will you have to mini tub the wheel wells then? If you have the room, you might want to look at different wheels before you start cutting or swapping read ends.

Pat