I would worry about the pressure it can handle. My rough guess is that 5 volumes at 80* is 100-120PSI. My bottles were pretty volatile at room temp, so that seems about right to me. But, if they can handle the pressure, and you use a strain that’s flocculant enough (EC 1118 or Premier Cuvee) I’d guess they’d work fine.
Looks a little like an external bindule system. Cute
But Nate’s right, the big problem is the pressure. These things are designed for screwtop bottles and those won’t come anywhere close to holding the pressure needed.
Cute - that was my initial response.
Maybe you just need a LOT of duct tape?