I am attending a formal Edwardian Ball next month and am trying to plan ahead what I will wear. All I have to start with is a silver-gray underbust corset (bought years ago, not pictured) and black retro heels (first Find below)... I need a dress or a skirt/blouse combo that won't look TOO out of place among some serious historical costumers.

I collected some possible options below from Angie's recent recommendations... I love the Ellen Tracy blouse that she just posted today, but it's sold out in the smaller petite sizes (regular size's sleeves may be too long, but we'll see) and I don't have a long neck. The H&M cream blouse is sold out completely online.

Plus, I kind of have no idea how to put these disparate pieces together into an outfit/costume! Help please?