I have a Bernina Artista 200. I bought a stitch regulator for it when the BSR came out. Perhaps you could get a used Bernina with a BSR that would not be as expensive as the 820 or 830. I have quilted an oversized king size quilt on my 200. I cut the batting in thirds and had no problem using my small machine. If you do get a used Bernina, get it from a dealer. If I remember correctly, the BSR was around $1,000 when I purchased it about 7 years ago.