The best part, there are not complicated parts - he found everything in one stop to the hardware store and it was basically a slab of wood and pipe parts (+ wheels if you want to be able to roll it)! He also bought a few extender parts (more pipe pieces) to get that perfect height. See below for all the parts laid out.
The finished product resulted in a perfect fit right under my closet's only rod, instantly adding another layer to hang clothing on. This helped my closet to be less packed (space between hangers is so nice) and provided more visible clothing. I moved my bags and shoes up to the top (in shoe cubbies on the shelf above my closet's natural rod).