I just removed an old 2" thick concrete and asphalt walkway and found 1/2-2 " of sand. I would like add about 2" of soil to bring the area up to the the ground level next to the old path, plant grass and then create a flagstone walkway on the new lawn. This is not a heavily traveled path. Will this work, or is the sand going to make it impossible to grow grass with only 2" of topsoil?
I don't really want to dig out all the sand, but don't have the money or time right now for a new brick walkway.

Thanks!