Just an update to say the dress arrived and it’s a keeper! It hangs really well and is most certainly less ragged like then it looked in the eBay pic.
I’m really pleased and also relieved that the search is over. Thanks everyone for the comments.
Only one tiny point, is that it’s going to need a complicated low back bra. I was hoping that the ties at the back would cover the bra straps, but that’s not going to work.