I think of my feet as medium width and my 5.10 Galileos are definitely too wide, so they might work for you. Following up on Gabe's comment, I have a pair of La Sportiva Barracudas that hurt me in a way no other shoe has ever hurt, on the outside of my little toe. But of all the shoes I've seen their shape is the closest to what you describe.
I don't think Acopa's are especially wide, I have a pair of Spectres which I like alot for Gunks climbing. Bachar has tried to make them comfortable, whatever that could possibly mean for a rock-climbing shoe. I think he has succeeded, so they might feel better than many other shoes, whether or not they are really wider than usual.