I have one of these made with PVC on Ebay.  This is completely ready to assemble and you can buy with or without GPU.  It is broken down in easy to assemble pieces to ship.


https://www.ebay.com/itm/Mining-Rig-4x-GTX1070-NVIDIA-Ethereum-plug-and-mine-ONLY-MODULAR-RIG-on-EBAY/322687360013?hash=item4b21aa5c0d:g:KJ4AAOSwmZFZpyzW