Okay I did some figuring :roll: :?
If you layed out your blocks 4x4, you will only be using 8 appliques, the last one you could use on the back.
For sashing around all (including top, bottom and sides), using 2" cut (1.5 finished) you would need 1/2 yard, hopefully with leftovers.
Now if all my math is correct you should have a quilt that is approx 29" square. After adding a 4" boarder your quilt will be about 36" square
I had to a picture to help me 'picture' it. ;)