An external leak like that is almost never a LIM gasket. If you look at where the top radiator hose attaches to the engine, that's right where the head and LIM meet. If you see silver in there between them, then you have th aluminum gaskets and should be fine forever as far as I'm concerned. Now..your upper could still be prone to failure, because the coolant ports aren't blocked and the EGR will heat the area between the coolant ports and potentially cause an issue. Still though..that is not going to leak externally.
Try and get a better idea of where the leak is ending up and trace it back up to the car. Say it's under the radiator..or under the edge of the transmission etc. Then you can look around the engine bay and see what is leaking.
Passenger side front..would be the coolant level sensor seal, radiator cap, excess from soneone adding, or lower radiator hose.
