Hey, I'm catching up a bit on this thread so forgive the very late reply. Looks like you didn't get any takers on your questions - good pictures, though - you tried!
What did you end up doing? I would have said return the 36S and try the 34R Lazio. The shoulders on the 36's were too big for you it seemed, though the pants on the 34 looked to be a bit snug up top. You seem to have a hell of a drop from chest to waist.
I ended up choosing the Lazio 36R.
The 34 Napoli was too compromised and I think lengthening the sleeves of the Lazio 36S with working cuffs would have been more difficult than shortening the 36R (which are so close they can probably be done at the cuff).
I ended up trying a Lazio 34R in Seattle when I went on holiday and it unfortunately creased on the chest, although the shoulders fit a little better. All in all I think the 36R can be made to look best, the shoulders are actually pretty close.
I'm definitely slim around the waist and have a decent chest/waist drop, but I think the fisheye of the lens accentuates it as my chest is right near the edge of frame