I like the idea of that with the acrylic included. I'd be willing to pay you for your time to possibly mock-up and cut/drill a mount similar in fashion to your own system for four (4) of your AntMiner S5's.
Quick measurements mean I could fit a rack like this in a very convinient spot, which is rare in the mining game!
I'd be open to that - and the nice thing about the system is that it's modular, even using the same plates assuming the miner has roughly the same profile. So the S5's obviously work fine, I've currently got S7's on it, and I'll more than likely be replacing those with Avalons (I prefer the wiring configuration of these vs the S7).
With the S5, using the acrylic cases as well is pretty critical, otherwise it basically sprays hot air everywhere, or sucks in cold air very ineffectively.