I have a very similar vest set-up. Mine is based on the last generation South African combat vest, which is in a nice sheeple friendly African savanna brown color. I got the vest idea stuck in my head since reading "tunnel in the sky' by Robert Heinlein.

My wife rocks at making a fire with a bow-drill. I can make smoke, and curses.
One of the guys that works for Tom Brown showed us how, at Wild West City a few years back.