I have just built up one with 140mm slants (520mm ac), a 55mm stem on a large frame. I went for a large and am 6 2 like you. It feels spot on apart from steep ups and I would like to be able to drop it down so your should be spot on.
My bar is a 760mm chromag with 20mm rise.
I have a reverb on it which I also think helps in the comfort stakes as well as some big tires. Run 2 x 10 gears wise.