Those spigots aren't well designed for cleaning and sanitizing afterwards.
i've never had one that didn't leak a little either. messy things.
it would be doable, but the sanitation risks would prevent me from messing with it. plus i have 2.5 and 1 gallon jug fermenters already.
Primary: English Mild
On tap: Pale Ale, Lancelot's Wheat, English Brown Ale, Steam Beer, HoovNuts IPA
Bottled: MOAM, Braggot, Raspberry Melomel, Merlot, Apfelwein, Pyment, Sweet mead, Cabernet
Gal in 2009: 27, Gal in 2010: 34, Gal in 2011: 13, Gal in 2012: 10