Thanks for your comments everyone. sewbizgirl, I think that is what I am going to do. I did a couple of sample pieces, to see how well I can quilt in fullness with a couple of designs. Had pretty good luck with a tight stipple, but still ended up with some pleats at the end. Geri, your suggestion might help me there. I also did an open design, which worked pretty well. Left some puffy areas, but no pleats.
So, I've sent off an email with a couple of photos, and I'll see what she comes back with.