Shane, you are correct, I do know of a place: reenactorstuff.com It is an auction site for all forms of re-enacting gear to be sold. I came upon it quite by accident one day when on the same quest. Thankfully though I have learned to sew my own gear, so I don't usually have much use for that site. Also, check out the Ladies Parlor, I believe if you just google that one it should come up. Wonderful ladies sutlery. Also, I can give you the email of my very good friend and Martin's niece down in the Savanah area. She is incridible with dress making, and other fine arts. She has made some of the most gorgeous hand embroidered collars and matching undersleeves and is incredibly reasonable. She also does jewlery, reticules, and other niceties. Private message me and I will get you her email addy if you would like.
As for hats, if you need them, I do make hats. NOT bonettes. I am attempting that one, but I am so anti-bonette that it's not even funny. So I do riding hats and straw hats. Again, if interested email me for prices.
For iron work, I am sure you have a blacksmith down there, but if not, my hubby is a blacksmith and makes the most gorgeous fire grates and spits, friction lanter hangers, and other things. You can ask Shane on the quality of work my hubby puts out. Jon, my hubby, does do special orders and ships anywhere.
Again, I hope that helps,
Jenna