Isn't this how Beatification is made at russian river? It spends one day in the coolship, then transferred to barrels to finish fermenting and aging. Substitute the coolship/spontaneous fermentation for a starter, and you should be fine. Only issue maybe is headspace. If you're aging it you want it pretty full so it doesnt oxidize as much. Im assuming this is why a lot of the images ive seen from breweries, the barrels are gushing during Primary fermentation. You could probably rig up a blow off though?