I am 6'4 and 240 lbs, and my hips and gut are wider than my chest- I have had decent luck with Pinnacle. I haven't tried Bare. In the past, O'Neal XL Tall suits fit me when I was closer to 200 lbs. I believe that Mares does not fit taller people very well.
You might also look at wearing a shorty under the jumpsuit, and this should work in warm water as well if you wear a 2mm shorty under a 3/2 or 3mm jumpsuit. Since you are tall and thin you will probably need more insulation than other people anyway.
You might also look at wearing a shorty under the jumpsuit, and this should work in warm water as well if you wear a 2mm shorty under a 3/2 or 3mm jumpsuit. Since you are tall and thin you will probably need more insulation than other people anyway.