I did order one of the shorter ones and I should have it by Friday (a holiday for me) to test.
That is a decent price for that open air setup. I might get one just to play around with. But I'm fairly handy. Search this sub-forum for the term hydra to see some pics of the mining rig I made. I also make open air benching stations for my daily driver. I should clean up my current station and post a picture of that. But getting one and finding a quiet corner at work, I could set up a nice folding rig. I think I could set it up in the maintenance room out of the way and as long as I let the maintenance guy know ahead of time, nobody would mind. Thanks for pointing it out!
Anyway, here is the riser I tried to use. As you can see, no shielding.