My topology is slightly different so I had to solve how to nudge outer belt faces further out with the two modifiers I dread. Shrinkwrap and solidify. Usually, I’ll grab a face, find an axis and force a move. That never works. I grabbed the bottom edge and used proportional editing. Bam. Popped the belt in front of the corset.
My alternative was always getting it into position, applying these modifiers, and then adjusting every face. Tedious. Also works.