mate invest some time in figuring out where the leak is before you go ripping stuff off. an hour spent with a torch and mirror can save you a day's work. the oil feed boss that bolts into the block has a female flare steel tube going to a banjo for each huffer. if the oil is in fact coming from your turbos, it could be coming from either end. sometimes the tubing cracks through fatigue. hope it's just a loose banjo bolt. if it's from the oil return it's either the drain pipe that bolts onto the bottom of the turbo, the drain pipe that bolts onto the block, or the rubber line with the insultation that joins the two.
alternatively it could be your turbo seals.