Watson--check out some black SoFine #50 (very fine without any sheen) or MicroQuilter (even finer,plenty strong and little sheen--great for fill)both SoFine and easy to use. I'd use a prewound bobbin, maybe a SuperBob or a MagnaGlide bobbin for the MicroQuilt thread--just easier to "wind". King Tut is way to heavy for that background fill, and if you decide to quilt this on long arm rental, the embroidery thread will need to be done slower as it may break more. PLEASE post a picture of it quilted--fabulous quilt!