I've been thinking about this setup as well. I would think that you could attach the standard coupler and just put the connecting hoses in a bucket as a blowoff tube, no?
On Tap: Belgian Barrel Aged Barleywine, Da Yooper's Oatmeal Stout, Breakfast Stout, Hop Your Face Off IIPA, Catcher in the Rye Saison, "Wino-head" Nelsin Sauvin Gumballhead.
Bourbon Barrel Duchesse De Bourgnone
Fermenting English Mild
on Deck: Lager?