The second costume I hope to have by Dragon*Con this year is a Steampunk costume.
I found some actual Victorian boots on eBay that are in exquisite condition except the soles need replacing. I have to test and see if they aren't too tight to wear all day though.
I'll either go with these, or these other shoes I have and make spats for them.
As of right now, all I have done is the corset. Like the Padme gown, I decided to make the corset historically accurate so I can re-use it for historical costuming purposes.
I used the pattern from page 71 of the book "Corsets" by Jill Saleen, and I used this PDF called The Corsetmaking Revolution which I cannot recommend enough. It uses math to alter a corset pattern from a book to a perfect fit and was a great learning experience. For this corset I have two layers of cotton coutil covered in an outer layer of cream silk dupioni from SilkBaron.com. I used the flossing pattern from a corset on the next page in the book. It has 1/2 wide steel bones. Oh, and I made this portrait for funsies.