I'm afraid that sewing is not one of my talents... plus I want an original dress from the 1920's.
Fortunately, I've found a local vintage clothing store that has a number of 1920's flapper-type dresses, some for under $300. The store, in Chicago, is called Silver Moon, at silvermoonvintage.com. I'm definitely going to buy a dress from them after the store owner sends me some pictures to choose from. I can't wait!!!