If you going to do the Orange Peel with your walking foot, you only need to get 1/2 of the quilt through the harp. Start by quilting the first vertical line down the middle. This will be the hardest one to do. Each new vertical line down the quilt will get easier as there will be less fabric to go through the harp. Once the right side of the quilt is quilted, rotate the quilt and do the other side in the same way.
once all the vertical lines are quilted, do the horizontal lines from the middle out again.