I had the same sizing issue with my very first AEs (Strand). I went with my regular shoe size 9.5 and went up on width E, since the 5 last is narrow, and the fit was almost exactly like yours. So, I went to my local AE Store in Manhattan and got professionally fitted. It turned out that my feet are size 10.5 C (or D if I'd like to be able to wear semi-thick socks). So, on the 5/65 last I wear a 10 E. I'd advise that you have your feet professionally fitted. If you don't have an AE store near you, you can go to other shoe stores, like Cole Haan, where they also do professional shoe fitting.
I have to go with an E width on 65 last balmorals for the same reason. Other lasts and brands, I can do a D and still close the laces. I appreciate the extra toe room though, and the 65 has a tight enough heel.