I sympathize. I was in the exact same position 3 weeks ago, trying to finish a quilt for my son. Short by just over a yard on the background fabric I needed for the borders. A lot of on-line searching, and I found the fabric, figured out the colourway, and now I have 2 yards of a perfect match in my hands. I cost me an extra 4 yards of wrong colours, but in the end was certainly worth it. And I second what someone said - don't be afraid of the UK quilt shops. That's where I got mine (admittedly, it was a UK fabric to begin with).