Step Two: Alterations
So after you have found your coat you may have to do some alterations. Personally wanted to cut the buttons off and take the coat in in the back (sewing the back together) to make it look tighter but you don't have to do this. Once you have what you want it is time to spray paint. This you do not need to do but my coat was black and that would not do. Depending on the material you may have to get other than just spray paint but I used brown spray paint on leather and it worked well.You should do two coats on each side and let it dry.
This is what my trench looked like after I finished.