So I have a 40 inch chest, and I'm perusing the internet and looking in stores for some sport coats/blazers, and I notice that most of the measurements online for a jacket have the sleeve length come out to about 35.5 or 36 inches. I've been told that a jacket should show about a quarter to half an inch of sleeve, and I have a 37 inch sleeve length. Do I have to go bespoke? Is showing an inch to an inch and a half fine? Does a size 40 double long exist, so that the sleeve length would be closer to what I need?