Front Yard Reconstruction: Original Garden

The plan is to raise the original garden's retaining wall four inches, then fill it with four inches of top soil followed by two inches of garden soil. Now that the Daffodils have ha their time, I cut them down and am filling the garden. In the meanwhile, you can see the new wall is growing taller in the back ground. One problem: I contacted my dump truck guy to get a load of top soil and he said there is none to have. Hopefully some will become available in the middle of next week. I figure I need between six and seven yards!