I feel your pain Tony. I have the exact same body type, 5' 7" 180 and any IWB is to much for me.
I find pocket carry or OWB. I can carry my 340PD, P3AT or NAA 22 Mag in my pocket or I go Glock or the like OWB. I think the only solution is to loose a few lb's of the abdominal area and then get a Kahr PM 9 or 40 or P40 or 45 with an IWB rig. That's what I'm shooting for anyway.
You sure looked taller in the picture next to your dog. LOL