Any reason this would work better than doing a closed transfer into a keg that contains priming sugar, and letting it carbonate via "keg conditioning"?Here are some cold side thoughts:
1) Spunding. Transfer the beer towards the very end of fermentation into your keg. Cap the keg and let the CO2 build naturally. This is the absolute best for eliminating O2 as transferring fermenting beer has active yeast which scavenge any O2 that gets in. More time consuming and tricky to "catch the spund".