That looks great, especially for a rush job. I see zip ties and shelves, what did you use for the upright supports? I'm thinking of setting up at a future show, and trying to figure out an easy cost effective way to setup a rack.
They are 6ft closet shelves, zip ties, 2 T pvc pipes and then 2x 12ft pvc pipes.
Cut the pipes in half for the side, then 1 of the remaining 6ft into 18" legs and have 3ft pipe left over. I then drilled a few holes to put the shelf ends into and zip tied for support and to ensure the thing doesn't pop out.
Cost me just under $100 to build, which I am sure can be shaved down if I wasn't in a rush