I am not trying to hijack this thread. But, for another opinion, I wear an 11 to 11-1/2 street shoe. I was fitted by a professional boot fitter into a 28.0. They are too tight. I skied in them for four days at Jackson Hole and they hurt my feet and my toes. So much so that I will be selling them before I go skiing at JH in January.
So, I know what most people will tell you about boot fitting on this forum and I respect their opinions more than mine...except my feet hurt in these boots and it made my skiing less than fun. So, I take people's advice as a guide, but my experience as a more important factor in boot fitting.
Now, maybe they'll pack a bit more, but I'm not interested in risking another four days of painful skiing when I get to ski once a year. At 43, I need comfort and performance. The 28.0 is too tight so it might be a perfect fit for you. Maybe this seller can ship you his boots and you can take them to a professional boot fitter and get set up. For $100 I can't see how you'd go wrong.
BTW, I completed all four days of lessons at JH and finished a SOLID 9 on and off-piste. I definitely don't have the knowledge of 99% of the other members on this forum, but I know what hurt my feet for four days.
My boots are Technica Icon Alu Comp Hot Forms in case you want to compare whether or not my experience would be similar to yours. I have a normal width foot.