Hi guys. Eric makes a good suggestion. I reviewed the Danner 230 XCR on this site, and found them to be essentially a low-cut boot. Very supportive and protective, but on the heavier side. The width is closer to an EE.
Why leather? Leather uppers and breathability/lightness are counterdictory.
New Balance is back producing outdoor shoes and has several new models coming out. Some have leather uppers, or synthetic leather materials. And of course they have wide sizes, up to 4E.