From that article, I think the goal is just to update current NVD capes with it. Not tracking any update for PR iron (exception being the HH-60W).
However, if we're talking off-the-wall airlift solutions, I submit the Murphy Moose. Basically a 75% scaled Dehavilland Beaver.
Floats, skis, or boats....it doesn't matter. If it fits in the cabin or even strapped between the floats, it will still fly (probably).
https://www.murphyair.com/detail/moose.html