Solomon Kane Costume

Hey all!
So I'm working on a Solomon Kane/Puritan Witch hunter costume for this year's Renn Faire. I've found some good boots, gloves, and a hat. I just can't seem to find any good leather, period-style pants, a jerkin, or a cape/cloak. And I'm completely lost on where to start with the type of pistol used by good ol' SK. Any input would be great! I was going to more of the movie Solomon Kane rather than the REH version (not to knock the original though)





Thanks everyone!