You will have to keep washing in mind. Corduroy is incredibly heavy when wet and takes a long time to dry. I do not think it would be a good match for a silk top. A silk back would be divine, but might slip right off the bed.
Since you have some extra silk, make a sandwich with the different backing fabrics, quilt them and wash them. See what results you get.
For me if the sample works the thought of Minkee on the back with silk on top wounds wonderful.