Hello, I am new to this forum and have been trying to find some info on the Sterlingwear Navigator Pea Coat, but have been unsuccessful so far, I hope you guys can help me out. I am 176cm (5"77)(?) and weigh about 170 pounds. I'm a little on the bulky side. I wear a size 42 suit which fits me ok in the shoulders but is quite large around my waist area, so I had to alter the waist. My true chest size is 40,5" and shoulder-shoulder measures 20". I would like the coat to fit snuggly with a not so thick sweater or hooded sweater underneath. The thickest I would be wearing would be a button-up shirt and a sweater or cardigan. Also, concerning length, would I need to go with a Regular or short? My arm length is about 26" (shoulder-first knuckle of thumb). Thank you, Ryan K.