The other thing I've done is track down a supplier for rat-tail cord for the decorative work. They have a big selection of colours, but nothing close to the colour I was hoping to match, so I'm back to the start on picking a colour.
This is what they've got
So because I haven't choosen colours or fabrics for the big project yet, and because I want a victorian evening outfit, I've decided to test the TV pattern on this dress- more on that next time!