I found an 8" pattern for the DP. As for the FMQ, I saw the quilt spread out tonight when I was pin basting it and I think I've changed my mind about the flower. It'll work out.
As far as sewing the DP, I will use the McCall's method because I don't want to clip the edge like quilterscache does, but I will use only one or two pins. I've set in enough sleeves that I don't anticipate a problem.
Thank you, everyone.