Hi Gillian, I hope you find someone but I can say I tried to do the same thing about 3 years ago - really wanting something custom made and I gave up. I finally find an ok dress and then had it tailored like crazy at Adam Tailoring downtown Seattle. Not much help I know but he used to make suits and dresses from scratch but gave that up to focus on tailoring about 15 years ago or so....so he has a good eye for that kind of thing...and many a wedding gown are in there when I’ve went in.