That's a picture of my suit if im not mistaken....the RS fit my torso just fine without any extreme trimming, i trimmed mine about the same yours and im 5'6" and have a 32" waist. Once you got the armor assembled, just tighten your belt.....the ab and kidney will overlap each other....imho i think it will look fine rather than trimming unneccesarily (i think there were a few troopers in the movie that had theirs overlap) And as you can see in my picture, i had too much return edge on my butt, kidney, and back plate...you dont want that, it'll crack easier with big return edges, ive trimmed mine to a very minimal return edge since....