The second hand carpet hangar at YSBK possibly does have a GA significance...
Perhaps buy a few truck loads and make an artificial RWY on Lake Eyre for the Searey?
I have a feeling that it would end up the same as what happened on one of the stations up north years ago who used old conveyor belting to make an artificial runway! Although the SeaRey's prop is up high, unlike a PA-28.
DF.