I use and supply what I consider is the best batting for your precious quilt.
I carry Quilter's Dream batting which is proudly made in the USA. I find it to be of high quality construction. It is strong and resists shrinkage, yet stays soft and drapes beautifully giving a traditional look and feel to your quilt. You can learn more by visiting their website here.
Unless you choose another type of batting, I use Natural Deluxe Dream Cotton (you can read more about it by clicking on the link to Quilter's Dream above). It is high loft and 100% cotton.
I also use and supply Warm and Natural products, Hobbs 80/20, Pellon Nature's Touch cotton batting and various wool brands. I also stock black cotton batting. We can discuss the best batting for your specific quilt.
I will use batting that you supply, but cannot guarantee the quality of the finished product. Considering the amount of time, attention, and love you have worked into your quilt top, I hope you will consider using high quality batting.