I promised pics of the finished gown, so here they are. The only change (as far as I know) to be made is the brooch - I'll be buying one from ebay within the next couple days.
It's shown here worn over the chemise, stays, bum roll, and both the petticoats I've made recently. It feels so weird to put this dress and the stays, which have been so long in the planning stages and making, into the closet.