No experience with the Oru but it looks good. I have used the Klepper and Folboat and like them on flat water and ocean but not for white water as it is too easy to break a frame. The Oru looks like an improved version of it's predecessors. The Kayak that gets the most use of the three I own currently is the Poke Boat. The single weighs 28 lbs. and can stand up to Class III rapids with a good paddler. The double I have only test paddled but it looks like you could carry a moose in it or at least a Caribou. Either could be carried on the floats but not sure what you would do with wheels on. On something like a Helio a belly mounting system might work.
As others said paddling the inflatables is a short distance proposition. But for downstream running many row well.
I think I would make a list of priorities like: portaging, paddling, portability, assembly, hauling etc. and see which gets the best marks.
