Good idea, I'll give it a shot.
Between the first post and now I went and re-flexed the truck and was able to make contact between the tire and fender. The spring had a small amount of negative arch, so I'm sure it was almost all it would give. I had at least 4 inches between the bump stop and spring plate.
I think I will hack some more off the fender. I didn't want to, but I need to. The cuts look good right now, but I'll do some digging to find some others that have cut more than me. I will probably pull the inner fenders out, then cut the outer, and re-install the inner and bend it to shape.