I did the fitting on Simplicity 4102 (the Chicken Dress) in 2011 and it works pretty well, so . . . away we go. I went home last night and cut most of the bodice pieces.
The fabric is a slate-blue (darker in real life) VIP mini print. The pattern is pink and maroon so I'm using maroon rick-rack trim and buttons.
Badly-drawn concept mock-up:
I kind of hope, too, that I can use this to help me re-fit New York 1490, since it was such a mess. This has a similarly relaxed bodice fit.