I didn't think to wait for a possible sale, but my Dark Chili Cornwallis just arrived today. I''d ordered a Fifth Avenue during the Anniversary Sale, decided I didn't love the style (since I rarely wear the brown pair I have), and figured I'd take a risk on these. I'm glad I did; the Cornwallis is quickly becoming one of my favorite AE models.
These Cornwallis are the same size as my 65-lasted shoes. They're slightly roomier through the toe box and instep (leading to a narrower v-gap), but I tried on a half-size smaller, and it was much too tight. I'd stick with your 65-last size.