I'm going to watch this one for ideas, too. I'm finishing up a Lady of the Lake BOM in a couple of months and I would like to figure out how to quilt mine, too. I'd like to use an era-appropriate pattern, as well.
This is the layout I'm thinking of, but it shows the Lady of the Lake block for people who might not know it by name. I would love to see what layout you're using, too.