"sublime" if you don't mind me asking, where exactly was your cooling leak at? My wife's sportage has one but its on the exhaust manifold side. Right behind the alternator on the block. Appears to be an aluminum tube running from the lower radiator hose. The tube dissapears under the exhaust manifold and goes some where. Its not a huge leak, just drips from where the tube comes out of another aluminum block that is rounded. The block mounts to the block with 2 bolts. Maybe an o-ring or something?
Oh, did you ever find out what your issues were or still are?