This is probably too little, too late for your event, but if you do a google search for Revolutionary War clothes you will find websites of people who sell the clothing you're looking for. We sell basic "colonial" clothes (pre-made) or you can have all that you might need custom made. Some basic items you would need: chemise (undergarment - like a nightgown), petticoat, short gown/sleeved jacket, some type of cap and hat for your head.