Our supplies included two sets of these Martha Stewart cubbies. We assembled them and turned them on their side just as you see in this picture. We bought seven of the canvas drawers. A piece of plywood. A 2x4 piece of wood and various screws. I'm not positive what the exact total of this project was but it's about $200. And it makes a really solid little bed.
Really easy set up. This bed was completely done in about two hours. After assembling the two sets of cubbies my husband screwed them together end to end so they won't separate. He had a piece of plywood cut to fit. One side of the plywood was screwed to the cubbies and the other side was attached to the wall using a 2x4 underneath for support.