K, here goes.
I have a 1.5 meters of the dark brown, and a bit more than 3/4 of a meter of the light beige in the photo, HOWEVER, that beige is not the same as in the rest of the quilt, and I'm afraid it will look silly. Unless I make a really narrow border, like 1". I agree about the corner blocks, I have a medium brown that I have just enough to change the corner blocks.