Well, the ones at 5 1/2 yards are used throughout the quilt.
I added two borders to it to make it a lap quilt and the thing came out to 53" x 53". It originally was 37" x 37" as a wall hanging.
It does sound like a lot to me too. The quilt program counted and calculated it. Without the two borders I added, it takes 2 1/8 yards of that fabric.
I don't want anyone to spend a fortune on it -- especially for something you haven't seen. I know you've all got projects you want to invest in.
I'm going to make it up as a mystery quilt anyway, post the clues and pics and you can all watch, and if you like it, you've got the pattern and the the yardages and can join in. It'll still be fun.
:D