I am normally a 38 S in a suit, which translates to 42" chest. I'm looking at a used full-length cashmere overcoat that has a 44" chest, and wondering if that is ok. Shouldn't an overcoat be slightly fuller than a suitcoat, since you'll be wearing a suit underneath (or in my case more likely layers/ bulky sweaters)? If needed, could the chest and/or waist be taken in slightly? The shoulders and sleeve length on overcoat appear to be near perfect, with the latter being not unimportant since there are working buttonholes on the sleeves (also unusual in that the sleeves are short like my arms: 24"--my suit sleeve length is 23.5, so this seems about right, if perhaps still a touch short. Quite possibly a custom job, no?) Apologies if inquiry seems foolish, but this would be my first venture into a serious overcoat.