So, we bought a nice pair of used mounted cavalry trousers for my son...they really need to be hemmed, but the pants were pretty much hacked off at 32 inches..which is the length we need. Do we just leave it ragged, or try to hem them? And if we hem, well, lets me honest, if I hem, how? I could do a slim rolled hem..I’ll be swearing as I do it..would that be period at all? Help!