Big Country

Where do you find a good, dependable flintlock for under $200?

I just bought a Knight in-line, but I would like to have a flintlock also to shoot and hunt with just for the fun of it. But I am not looking to put out another $500.

I saw some used ones when I was trying out the various in-line brands, but each one of them had a good amount of rust in the barrell so I passed. I would be interesed in a good quality one new or used.