Can a gown be drastically altered?

So you know exactly what you want and can’t find it. We can take 2 or more dresses, tear them apart and put them back together how you like. Sleeves from this dress, bodice from another dress, skirt from the a third dress. Look at fabric color, type and weight for best matches. The alterations will be a bit costly – but it is possible.
Take your ideas, picture, magazine clipping, drawing, what have you to the bridal shop. Tell them you want to shop their back room where the deals are.